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Trek Powerfly 4

Powerfly 4 is our most affordable electric mountain bike. It's built with parts that hold up, like a smooth-shifting Shimano drivetrain, and a powerful Bosch motor. Plus, it features our user-friendly Removable Integrated Battery (RIB) system that's fully encased in the frame yet doesn't require tools for removal. This bike expands your boundaries and lets you travel to destinations you never thought you'd reach on a mountain bike. It's right for you if... You're sold on the e-bike revolution and want the capability and versatility of a mountain bike at a price that doesn't resemble the car you're trying to use less. You want bigger, better off-road adventures, and know an e-MTB with the latest user-friendly tech is the best way to get them. The tech you get A tough yet refined aluminum frame that fully encases a long-range 500Wh battery for sleek looks, a Bosch Performance CX (250W, 75Nm) motor that assists up to 20 mph or 32 km/h, a Bosch Purion controller, a 1x10 Shimano drivetrain, an 80mm SR Suntour fork with lockout, and hydraulic disc brakes. Plus, Smart Wheel Sizing means riders of every size get a great fit—29" wheels on larger frames, 27.5" wheels on smaller frames. The final word Our most affordable electric mountain bike comes with the same powerful Bosch motor and intuitive controller as our most expensive e-bikes, with a smaller battery and parts chosen to give you great value. Why you'll love it - Trek's Removable Integrated Battery (RIB) system looks great and is super user-friendly: it fully hides the battery in the frame for protection, makes it easy remove the battery without tools and lets you mount a water bottle cage - This bike expands boundaries: the top-notch Bosch system is equally suited to commuting, recreation, and a ridiculously fun time on the trails - The Purion controller has Walk Assist and an intelligent eMTB mode that automatically delivers the right amount of power based on your terrain - It's equipped with an external charging port for easy charging on or off the bike - You can boost your Powerfly’s utility by adding a rack and fenders, plus built-in wiring lets you easily install lights powered by the motor Wheel size: Sizes X-Small – Small: 27.5-inch Sizes Medium – X-Large: 29-inch

Will my bike have a curved top tube?

Smaller frames (S) have a top tube that dips down as it approaches the seat tube. This design makes for a lower standover height, which is good for shorter riders because it allows them to straddle their bike more easily. Larger frames (M and up) have a straight top tube because taller riders with longer legs typically don’t have the same issues with standover height.

Due to supply-chain issues, Specs are subject to change without notice.

* Subject to change without notice.

Part Numbers

Trek Powerfly 4 Color: Radioactive Red/Trek Black

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EMTB Discussion

Possible battery/charger fault?

Thread starter Shane(NZ)
Start date May 10, 2020

Active member

May 10, 2020

Trek powerfly 500wh battery So the last 3 or 4 times I have changed my battery overnight (always inside, battery removed) It hasn't charged fully? Charger has stopped charging. If I remove charger and plug back in it continues to charge again (approximately 30min more this morning) it never use to do this. The charger gets warm as per normal battery does not. I guess it's either faulty charger or battery or bms which is in battery. Has anyone else had this problem? Cheers Shane

⚡The Whippet⚡

E*POWAH Elite World Champion

urastus said: After a ride, do you wait 30mins or so before charging? Or do you charge it straight away? I see you're from NZ - it must be getting cold there now . The video link might highlight a few possible causes. Click to expand...

Shane(NZ) said: Trek powerfly 500wh battery So the last 3 or 4 times I have changed my battery overnight (always inside, battery removed) It hasn't charged fully? Charger has stopped charging. If I remove charger and plug back in it continues to charge again (approximately 30min more this morning) it never use to do this. The charger gets warm as per normal battery does not. I guess it's either faulty charger or battery or bms which is in battery. Has anyone else had this problem? Cheers Shane Click to expand...

Thread starter

GrahamPaul said: One poor piece of advice given in that video is to keep a lithium battery topped up to 100%. This is just plain wrong, as described at length by "p c" in the first comment under the video. You really do not want to be doing a 100% top up every time unless you are happy to buy a new battery every year or two. As also given in the YouTube comment, the following link is highly recommended for understanding lithium batteries - whether used in your phone, laptop, ebike or electric car: Basic to Advanced Battery Information from Battery University Click to expand...

Shane(NZ) said: Normally over 1hr before charging after ride, takes 30min plus to drive home. Thanks for the link, have seen that one. About 17° today but is getting cooler. I guess its doing something it didn't use to. Click to expand...

GrahamPaul said: How old is your battery? It may be that charging it to 100% each and every time, your battery is now showing signs of deterioration. How to Prolong Lithium-based Batteries - Battery University Click to expand...

urastus said: I read the article - it actually confirms what the dude said in the video. I think what you're referring to is storing the battery at 100% charge, which is damaging. The video actually says not to store the battery at 100%. After reading the article, the one change I will make is top up charging, rather than leaving it till I have around 1 bar left (what I currently do). It looks as though the best way to do this is top up charge before the ride ie don't leave it in a full state of charge from one weekend to the next. I may have it wrong though; I'd like to know if I have? Actually, had to read some of it again to get my head around it. Ideally it is better not to fully charge the battery, period. I'm not sure how to achieve that - top up charge to 90 or 95%? Still open to any misunderstandings I might have; I'd like to do this right myself. Click to expand...

GrahamPaul said: That's a common misunderstanding. The article is not referring to storing the battery but to how the battery is degraded by charging to 100%. Here is a useful diagram from heavy duty electric car research to really show the difference in total charge cycles. (Note that "total charge cycles" refers to the amount of times that a battery is fully charged and then discharged, and not to how many times you put it on charge for a partial top-up. It is the summation of all of those partial times of charge and discharge). As you can see, you get about 3 times more useful life out of a battery by only ever charging it to 80%. Somewhere or other, I've got a diagram for partial charges of ebike batteries which demonstrates the same thing, but can't for the life of me lay my hands on it at the moment. Click to expand...

urastus said: Awesome, yes I finally understood that, thankyou for confirming it. The problem looks like how to charge it to 80 or 90%. It also looks like the length of time that the battery remains in a fully charged state is an issue. At this point I'm thinking charge after every ride but just before a ride. Click to expand...

GrahamPaul said: I went through that same quandary. I now charge before my ride to just over 80% (unless I'm doing a big ride, then it goes all the way to 100%). Why just over 80%? Because the Bosch Powertube has 5 lights and I only know that I've got to 80% when the 5th one starts flashing. I usually finish my rides with around 20-40% remaining (2 bars showing), so alway have to charge. I can't face the 2.2km at 10% climb to get home without some help. Click to expand...

If anyone is interested I found this charger - prohibitively expensive for me. Saw a video where a bike shop has one, which would make sense. It can charge all sorts of batteries but you need to buy the right lead for it. This can be programmed to charge slow and up to 80%, or whatever percentage you want (70% for storage?). I will buy an outlet timer though, and play with that. Very cheap and many uses.

urastus said: If anyone is interested I found this charger - prohibitively expensive for me. Saw a video where a bike shop has one, which would make sense. It can charge all sorts of batteries but you need to buy the right lead for it. This can be programmed to charge slow and up to 80%, or whatever percentage you want (70% for storage?). I will buy an outlet timer though, and play with that. Very cheap and many uses. Click to expand...

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Powerfly 4 Gen 4

Trek Powerfly 4 Gen 4

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Trek Powerfly 4 Gen 4 Color: Gloss Alpine/Gloss Lithium

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Is Trek Powerfly 4 Worth Buying? [Trek Powerfly 4 Review]

Table of Contents

Trek Powerfly 4

Price : $3849
Category: Cross-country electric bicycle
Frame : Aluminum
Gear : 1×10
Tires : 27.5″ / 29×2.6″

What we like about it: The powerful Bosch motor with Shimano drivetrain gives you the ultimate climbing riding experience. In addition, the Purion controller features a walk assist and intelligent eMTB mode that automatically delivers the right amount of power for your riding terrain.

What we don’t like about it: The motor makes a noise when it starts.

Rating (4.6/5)

Introduction

Every thrill-seeking rider dreams of an intense ride on rugged, winding trails. So when faced with the rolling hills and mountains, we desperately want a bike that performs well enough to make our dreams come true. Fortunately, the Trek Powerfly 4 is such a cost-effective e-bike with both commuting and off-road performance.

First, the rugged aluminum frame gives the Trek Powerfly 4 a more spacious and lighter body. Second, the high-performance Bosch and high-performance CX (250W, 85Nm) motors help you reach speeds of up to 20 mph. Finally, the Bontrager XR3 is equipped with 29″ wide tires that give you the confidence to maintain strong traction even on gravel-strewn sandy trails.

We have been reviewing the Trek Powerfly 4 for two months, and to make the results more informative for you, we’ll elaborate on the Trek Powerfly 4’s performance while riding, key features, components and specifications, and other versions in the series. If you’d like to learn more about the versions, please refer to our review.

Trek Powerfly 4 General Riding

The versatile Trek Powerfly 4 is a very cost-effective choice. It’s not a vehicle for off-road riders and is a smart choice if you use it for commuting to work.

When I rode the Trek Powerfly 4 for five miles on my commute, it still performed well. The 71.5° seat tube angle is not as steep as previous mountain bikes, instead, it fits my seating position better and gives me a comfortable riding experience.

The 29″ Bontrager XR3 is a natural for the second half of my brick road! Its protruding aramid beads cling to the ground like powerful suction cups, turning fast while maintaining the ultimate in smoothness. Of course, 29″ tires aren’t the only option, as Trek has given the Trek Powerfly 4 more tire options. If you want more responsive steering, then I’m sure the 27.5″ size is the best choice for you.

I didn’t feel my pedaling struggle as much as I used to when passing up the inclined uphill grade of about 5%. I think that’s what I felt most about the Bosch Performance CX, as the torque of 85Nm easily allowed me to overcome the steep climb.

At the same time, with the quick-action Shimano Deore M4100, 1×10-Speed drivetrain, it was easy enough to adjust the speed so that I still had enough energy for an easy ride even in the last kilometer of the sprint. Of course, I wouldn’t mind a 12-Speed gearing for the next version of the Trek Powerfly 4, after all, more and wider speed options would make for a more interesting riding experience.

Trek Powerfly 4 Trail Riding

Of course, as the main battleground of the off-road surface, Trek Powerfly 4 still surprises people with its performance. At the weekend Jack and I went to the famous Stromlo Forest Park to challenge the 40km of mountain trail running.

We were also a bit worried when faced with rocky forest gravel trails and rugged and changing mountain passes. Still, the Trek Powerfly 4 showed no signs of trepidation. To be honest, I was worried that the overly bumpy ride would leave me physically sore and numb, which is something no one wants to endure. But apparently, the SR Suntour XCM 34 fork does this very well, with 120mm of travel to offset more of the impact. Also, the quality VP Components, VP-536 Nylon Pedal didn’t put too much drag on my ride, and there’s nothing like that to get the ride off to a great start.

When I rode onto wet and muddy grass trails, I was concerned that going too fast would introduce a certain amount of instability. But apparently, the Trek Powerfly 4 took this into account early on. the Purion controller features a walk assist and an intelligent eMTB mode that automatically delivers the right amount of power for my terrain. This allows me to always ride at a smooth speed.

Of course, it’s worth mentioning the amazing gear shifting of the Shimano Deore M4100’s 10-Speed drivetrain. When I made an ascending sprint, the gear selection was made almost instantly. I gained a faster ride by locking into the SR Suntour XCM 34, putting me well ahead of Jack.

Not only that, the Tektro HD-M275 Hydraulic Brake was still able to perform strong and stable emergency braking in the face of slippery muddy roads. This, combined with the rough tread of the Bontrager XR3’s prominent surface, provided enough safety and confidence for my ride.

Main Features

You may not imagine that Jack exclaimed “Wow, unbelievable!” when he first saw the wild Trek Powerfly 4, whose unparalleled bodywork conquered everyone in the audience.

First and foremost, the rugged and refined alpha aluminum alloy brings great ductility to the Trek Powerfly 4. Through continuous cold extrusion and butting at multiple points, it is hydraulically formed into complex tubes to achieve a strong surface and minimal body weight.

Secondly, the internal cable setup not only keeps the cables in a safe location but also allows you to reduce maintenance. This also gives the Trek Powerfly 4 a longer life while reducing your cleanup and maintenance costs. You don’t have to worry about damage to the motor from off-road bumps. Finally, the unique motor is strong and durable, keeping the material light while providing you with the safest protection for your ride.

Of course, you can also choose whether you want to install fenders and rear brackets according to your wishes.

No matter what type of bike you’re on, scientifically thoughtful geometry always leads to a more comfortable and efficient ride, and the Trek Powerfly 4 is no exception.

The 71.5° seat tube angle isn’t a steep presence, and it’s better suited for novices to conquer those not-so-steep uphill surfaces. At the same time, the Trek Powerfly 4 is set up with a shorter and smaller wheelbase length to offset the unresponsiveness of the big and wide Bontrager XR3 in terms of steering. The benefit of this is also that you can maintain a smooth turn even in the face of those thrilling roads with sharp turns.

One more thing, the not-so-steep head tube angle (65.0°) has a crucial impact on your short-track descents. At the same time, the 11.4mm trail provides you with a good riding experience, and you can ride freely on winding roads.

That’s right, comfortable and snug geometry will always support your ride in every way.

Components and Specifications

Shimano deore m4100, 10-speed drivetrain.

The Shimano Deore M4100, 10-Speed drivetrain has absolute performance, and you only need to flick the right-hand tab for a butter-smooth shift.

The crank technology of FSA Bosch CK-220 enables you to accelerate easily even on some ascending sections with about 5% grade. And it allows you to shift effectively in the face of different riding situations. So you have to admit that Shimano is one of the best drivetrain manufacturers.

But as I mentioned above, I believe the Trek Powerfly 4 would have sold better if the 10-Speed drivetrain had been replaced with a 12-Speed operating system.

Bontrager XR3 Tires

The Bontrager XR3 gave me the answer as to what kind of tire can handle the gravel and dead branch spreading single-track trails. The 29”x2.6” tire size is extremely stable, and its prominent tread pattern gives me a smooth ride even when you’re dealing with wet and flat mossy roads. Also as a regular XC racer, the Bontrager XR3 can increase traction and comfort while reducing pressure when riding on off-road tracks. What’s more, the special anti-puncture system eliminates the risk of flat tires, eliminating your worries. Of course, Trek also offers a 30-day unconditional refund, so if you’re not satisfied with it, you can visit your local store for an exchange or refund.

Tektro HD-M275 Hydraulic Brake

Can you live with a bike that doesn’t have enough braking power? I can tell you without hesitation that I would say “No” to such brakes. Without a good brake, your ride will be a huge safety hazard. But the Tektro HD-M275 Hydraulic Brake doesn’t give you that concern.

In addition, the open system makes it easier to clean and maintain, while the dual-piston braking device has plenty of confidence in braking. At the same time, to eliminate the noise caused by brake friction, Trek has thoughtfully applied low-noise resin pads on the bottom for a better riding experience.

SR Suntour XCM 34 Fork

I believe the SR Suntour XCM 34 fork is the result of Trek’s careful consideration. The fork suspension it comes with is very resilient and will not be damaged by overly bumpy roads. And yes, it’s sturdy. After two months of riding on gravel and sand, it still performed as well as new.

One might complain that 120mm of travel for mountain trail riding would not have an impact on the performance of the shock. The fact is it performs very well. The streamlined, superior structural configuration works by retracting up and down to counteract the feeling of more vibration as it moves forward. Give it a try, I’m sure even veteran XC race riders will rave about the SR Suntour XCM 34 fork.

Bosch PowerTube 500Wh Battery and Motor

As we all know, in an electric vehicle, the motor is the soul. the PowerTube 500 stands out with its black, high-grade anodized aluminum finish. In addition, the Bosch high-performance CX motor sets the standard for eMTB performance. Meanwhile, torque is up to 85Nm, and the intelligent eMTB mode fuels body-extending performance that automatically adjusts to the terrain. What’s more, the RIB as an all-in-one battery has a built-in handle design that can be easily removed and reinstalled in the frame without tools. After our measurement, it can provide a maximum speed of 20mph, which is the most powerful assistant in your race.

Other versions of Trek Powerfly

To give you more options, we tested the other Trek Powerfly 4 models in an objective and unbiased manner, including the Trek Powerfly 5 for a certain amount of time.

Also made of alpha aluminum alloy, Trek Powerfly 5 has a much lighter body condition. This is certainly good news for those who seek a lighter body.

The Trek Powerfly 5 is a higher-end RockShox Recon Silver RL, but with the same 120mm travel, it has a better damping experience.

Meanwhile, the Shimano XT M8100 1×12-Speed drivetrain makes up for the regret I had with the Trek Powerfly 4. Because it has a more lush gear ratio and a wider range of speed adjustments, it provides a more interesting riding experience.

If you’re like me and have an inexplicable obsession and love for 12-Speed drivetrains, then I think the Trek Powerfly 5 will fit the bill. But it also means you’ll have to spend more $$$, which may be a bit of a hit to your wallet.

What is the price of the Trek Powerfly 4?

The Trek Powerfly 4 is priced at $3849.99.

What is the body material of the Trek Powerfly 4?

The body of Trek Powerfly 4 is made of Alfa aluminum alloy.

What is the tire size of the Trek Powerfly 4?

The Trek Powerfly 4 tire size is 29 “x2.6”

What is the maximum weight limit for the Trek Powerfly 4?

The Trek Powerfly 4 has a maximum weight limit of 300 lbs.

How was the size of the Trek Powerfly 4 chosen?

Trek Powerfly 4 Specs

What we like about it

The user-friendly Removable Integrated Battery (RIB) allows you to easily remove the battery.
Versatile Bosch system for your commuting and backcountry climbing needs
The Alfa aluminum body frame is tough enough to provide a comfortable riding experience.
Bontrager XR3 has a hard shell that crushes all debris obstacles.
Purion controllers feature walk-assist and intelligent eMTB modes that automatically deliver the right amount of power for your terrain.

What we don’t like about it

Some people might complain that the motor generates noise when it’s in motion.
The 120mm travel cannot adapt to the more complex and variable bumpy roads.
Rarer color options.

Comparison Table

Trek powerfly 4 vs bulls aminga eva 2 27.5” diamond.

Bulls Aminga and Trek Powerfly 4 are also used as electric bikes, both of them are made of Alfa aluminum, which makes the body strong and tough enough.

But the difference is that Bulls Aminga pays more attention to the ride on bumpy roads, as it also pays extra attention to the choice of a fork. The Suntour XCR 32 Air is made of higher-quality materials and is lighter in weight. Even in the face of rolling hills and forests, it can mitigate damage to the rider’s body through high-speed movement.

However, it should also be noted that the Trek Powerfly 4 has more options in terms of tires (27.5”/29”). The Bulls Aminga is a bit inferior at this point, with only 27.5″ tires available. This is not good news for riders who are used to big tires all year round.

If you have a preference for larger tires, then I believe the Trek Powerfly 4 is still the best choice for you.

Trek Powerfly 4 vs Scott Aspect eRIDE 920

With the same weight (both measured at 23.4kg), the Scott Aspect eRIDE 920 brings the 12-Speed system I mentioned. The choice of Groupset is also based on the higher quality NX Eagle, SX Eagle, and a wide range of speed control systems to provide a more interesting riding experience.

Not only that, the PowerTube has a more advanced battery option, with 625wh of battery power to provide a longer, faster ride. But unfortunately, the Scott Aspect eRIDE 920 still doesn’t have the same freedom to choose the tire size as the Trek Powerfly 4. This is again similar to the Bulls Aminga we mentioned above.

In addition, if you don’t like your battery exposed, the Trek Powerfly 4 may appeal to you. This Trek Powerfly 4 not only protects with the battery completely hidden in the frame but it can also be easily removed.

Notably, it comes with Purion controller with a walk assist and intelligent eMTB mode that automatically delivers the right amount of power for your terrain.

I have to say that Trek Powerfly 4 has a great price/performance ratio, both in price and in performance configuration, and is a good choice.

Learn more : Is The Scott Scale 940 A Great Value Hardtail Bike? [Scott Scale 940 Review]

Trek Powerfly 4 VS Rocky Mountain Growler Powerplay 30

The Rocky Mountain Growler Powerplay 30 is, in my opinion, a swift bull. It can brave the endless gravel land. In addition, the 634wh fully integrated lithium-electric battery gives it the ability to go crazy in XC races. In this respect, the Trek Powerfly 4’s 500wh battery may be a bit inferior.

Also, the Suntour XCR 34 fork has a slightly longer travel of 130mm than the Trek Powerfly 4. This also provides more cushioning to eliminate most of the ground vibrations. It also has a dropper design on the bottom saddle, which is a big competitive advantage for an e-bike of its type. The double protection can give you the ultimate riding experience.

The Trek Powerfly 4’s removable battery, however, is a highlight for many riders who prefer a clean charge. And the Trek Powerfly 4’s fork with a locking feature also prevents you from losing kinetic energy while riding on flat roads due to the work of the shock and thus slowing down your speed.

If you’re aiming for gravel-strewn forest roads with rugged rock walls, the Rocky Mountain Growler Powerplay 30 may give you the courage to sprint. But if you’re on a budget or want a simple, comfortable ride, I’d recommend the Trek Powerfly 4.

Trek Powerfly 4 vs Giant Stance E+ 2

The Giant Stance E+ 2 is the top end of the Giant line with unmatched advantages. It has a sturdy body as well as a strong surface, which is hydraulically formed into an exclusive tube body through a specific technology to achieve the perfect combination of weight and body. Unlike the hardtail vehicles of the Trek Powerfly 4, the full-suspension Giant Stance E+ 2 offers the ultimate damping experience with its front and rear travel (130mm front and 120mm rear). But if there’s anything that one laments, it would be the 500-watt-hour battery. It is very heavy and makes a lot of noise when it is started. If you’re looking for a full-suspension off-road e-bike, then the Giant Stance E+ 2 is the bike for you.

Although the Trek Powerfly 4 only has a dampened fork, this may not be as good as the Giant Stance E+ 2 when facing relatively harsh and bumpy terrain. But I think that’s forgivable – after all, the Trek Powerfly 4 doesn’t have a rear shock. And in real-world climbing, the Trek Powerfly 4 performs better. The relatively lighter body also saves weight on upward climbs.

If you prefer more challenging upward climbing routes, or if you prefer the more expensive Giant Stance E+ 2, the Trek Powerfly 4 is a great choice for the price.

In case, the above comments are helpful to you, please remember to share the subscription. Have a great day!

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Trek Powerfly 5 won't turn on after charging the battery away from the bike

Thread starter Atilio
Start date Oct 14, 2019

Oct 14, 2019

Hi everyone. I've been searching online for users with similar problem but couldn't found any. Just checking here before I take the bike to the shop. I bought this bike a month ago and I've noticed that charging the battery on the bike works well. But if I remove the battery (at work for example) and leave it charging, when I put it back the controller doesn't turn on for several minutes. It eventually goes on, quickly showing the previous charge level of the battery to then replace it by the 5 bars (full charge). It happened for the first time 2 weeks ago and I thought I'll keep testing, then it happened again a few days ago. It's very annoying, for the first couple of kilometers there is no assistance, and after trying many times to turn it on, it eventually does it, but many minutes have gone by. I charge it when I get to work around 9am and remove it at 6pm. I'm sure it has finished charging earlier than 6pm as it is cold. Range is great, 80-90km in ECO. On the weekend I tried removing the battery without charging it, but it powers on immediately when I insert the battery again. I called the shop and they said they have never seen it. I'm trying to better understand before taking it, as the only thing they say they can do is update the firmware, before making a warranty claim of course. Thanks

Active Member

Oct 17, 2019

What kind of battery? The integrated one that pops out the side?

Oct 27, 2019

Hi, I have the same problem with my Trek Powerfly 5 I have only had the bike for 5 days I have taken the battery off the bike to charge at least 3 times this week with no issues I took it off last night to top it up and when I replaced it to go for a ride this morning it would not power up There is no life in the head set The battery when plugged back into the charger does not light up as I presume it is fully charged I have checked/changed the fuse on the charging plug Does anyone have any suggestions I am planning to take it back to the shop tomorrow Thanks

Oct 28, 2019

Hi, All, Just an up-date on the above I have spoken to my bike supplier "Team Cycles, Team Valley, Gateshead, Tyne & Wear, UK And they have asked me to bring the bike back so they can investigate the issue I took it straight back and they tried another battery, which worked fine So they have replaced the battery without question All working fine now, so good result Thanks

Oct 31, 2019

tegnamo said: What kind of battery? The integrated one that pops out the side? Click to expand...

jpfps said: Hi, All, Just an up-date on the above I have spoken to my bike supplier "Team Cycles, Team Valley, Gateshead, Tyne & Wear, UK And they have asked me to bring the bike back so they can investigate the issue I took it straight back and they tried another battery, which worked fine So they have replaced the battery without question All working fine now, so good result Thanks Click to expand...

Nov 1, 2019

Hi Atilio Yes the battery was completely dead Although it was charging fine and when showing 5 green lights (battery fully charged) it powered down It did not power up the bike nor would it charge So I took the bike & charger back to the shop and they did the checks and replaced the battery It is all OK now Hope it stays like that Regards

Nov 8, 2019

Attachments

Hi @DANQUISH , thanks for the tip, I'm very keen to hear back from you if you get an update from Trek. Just tried it by removing the battery and turning it on as you said. The charge indicator LEDs light up momentarily. When I reinserted the battery into the bike the controller powered up immediately, so I guess that even if the LEDs on the battery were off, the battery was still "on". Hopefully this trick wakes it up if it happens again. Thanks again. Attached is a picture of the hole in the battery, very accessible.

Atilio said: Hi @DANQUISH , thanks for the tip, I'm very keen to hear back from you if you get an update from Trek. Just tried it by removing the battery and turning it on as you said. The charge indicator LEDs light up momentarily. When I reinserted the battery into the bike the controller powered up immediately, so I guess that even if the LEDs on the battery were off, the battery was still "on". Hopefully this trick wakes it up if it happens again. Thanks again. Attached is a picture of the hole in the battery, very accessible. Click to expand...

Hi DANQUISH, many thanks for the tip I will look for the "Power Button" and try this if it happens again It seems to be OK for now though Kind Regards

Dec 8, 2019

I have the same issue with a powerfly 7. The button always works but it is annoying ! Loving the bike though.

Apr 29, 2022

Atilio said: Hi everyone. I've been searching online for users with similar problem but couldn't found any. Just checking here before I take the bike to the shop. I bought this bike a month ago and I've noticed that charging the battery on the bike works well. But if I remove the battery (at work for example) and leave it charging, when I put it back the controller doesn't turn on for several minutes. It eventually goes on, quickly showing the previous charge level of the battery to then replace it by the 5 bars (full charge). It happened for the first time 2 weeks ago and I thought I'll keep testing, then it happened again a few days ago. It's very annoying, for the first couple of kilometers there is no assistance, and after trying many times to turn it on, it eventually does it, but many minutes have gone by. I charge it when I get to work around 9am and remove it at 6pm. I'm sure it has finished charging earlier than 6pm as it is cold. Range is great, 80-90km in ECO. On the weekend I tried removing the battery without charging it, but it powers on immediately when I insert the battery again. I called the shop and they said they have never seen it. I'm trying to better understand before taking it, as the only thing they say they can do is update the firmware, before making a warranty claim of course. Thanks Click to expand...

fooferdoggie

Well-known member.

rjones1138 said: I just got a Trek Powerfly 4. Fantastic bike on our rocky, rooty single track in Central PA. But it would not wake up today after a ride. Took it to the bike shop where I bought it and went through some troubleshooting. 1) there is a small battery in the control module (the box with the on/off and power +/- buttons - we replaced that and it still would not wake up 2) tried the "secret" power button thing - no go 3) interestingly, the usb connected PC with diagnostics did not give us much information 4) changed to a new battery and it is back to normal - just had to swap the aluminum covers Click to expand...

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Electric Bikes
Powerfly FS 4 Gen 3

Trek Powerfly FS 4 Gen 3 - 2023

Powerfly FS 4 is a full suspension electric mountain bike built to tackle rugged trail adventures. The plush suspension setup soaks up rough terrain, and the powerful Bosch electric drive system boosts your capacity to crush climbs and mile after mile of singletrack. It's right for you if... You want to get out and explore more trails. You're looking for an e-MTB with trail-smoothing full suspension and the reliable, leg-boosting power of an electric drive system made specifically for the demands of off-road riding. The tech you get A durable aluminum frame that fully encases a long-range 500Wh battery, a powerful Bosch Performance CX (250Wh, 85 Nm) motor that helps you sustain speeds of up to 20 mph or 32 km/h, and an ergonomic Purion controller. Plus, a 120mm suspension fork, 100mm of rear travel, a 10-speed Shimano drivetrain, and a dropper post. The final word This full suspension e-MTB is comfortable, efficient, and fast on rough terrain. The powerful Bosch electric drive system makes it possible to tackle any climb you encounter and adventure farther than ever. Why you'll love it - For e-MTB, full suspension is a game-changer: it soaks up rugged terrain so you can ride the Bosch pedal-assist system to its full potential - Trek's Removable Integrated Battery (RIB) system looks great and is super user-friendly: it fully hides the battery in the frame for protection, makes it easy to remove the battery without tools, and lets you mount a water bottle cage—even on full suspension e-MTBs - The dropper post lets you lower your saddle on the fly so it's out of the way on descents - The Purion controller has Walk Assist and an intelligent eMTB mode that automatically delivers the right amount of power based on your terrain - Powerfly FS frames feature a curved top tube that makes standing over the bike easier. Plus, Smart Wheel Sizing means you'll get the fastest wheel that fits—29" wheels on larger frames, 27.5" wheels on smaller frames

Due to supply-chain issues, Specs are subject to change without notice.

* Subject to change without notice.

Part Numbers

trek powerfly electric mountain bike

Trek powerfly.

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Summary of Reviews

We have read all expert and user reviews on the Trek Powerfly . In summary, this is what cyclists think.

15 reasons to buy

Owners reported an impressive range of up to 80mi and 7000ft of elevation.
A 71yo owner easily handled a daily climb of 500ft, on a 25% grade driveway.
A desert resident said the Powerfly rode easily, through soft sand.
Tektro hydraulic brakes were deemed responsive and “pulled hard”.
The 5’s fit and finish was described as “beautiful and rugged”.
‘Touring’ mode was great on roads, while ‘eMTB’ mode was excellent in the woods.
A removable battery made it easy to mount the powerfly on vehicle racks.
Powerfly drivetrains pedaled smoothly on the flats, despite the bike’s weight.
The Bosch Performance CX motor exhibited plenty of torque on climbs.
One owner cooed over the Powerfly 4’s metallic red paintwork.
The Powerfly 7’s TransX dropper-post made mounting and dismounting easy.
Overweight riders found the Powerfly’s carrying capacity to be more than ample.
One reviewer found that the Powerfly 4’s 100mm of fork-travel covered needs.
Shifting, range and gear spacing were lauded on the Powerfly 5’s drivetrain.
Some reviewers felt that the weight of the bike aided stability.

7 reasons not to buy

The Powerfly was heavy, and onerous to pedal up hills without assistance.
Some owners would have liked to be able to easily add a second battery.
The Powerfly’s high-level component spec made it a pricey option.
Some owners felt that the Powerfly’s paintwork was easily chipped.
One daily user reported delayed engagement of the power assist in snowy areas.
Schwalbe Smart Sam tires punctured easily, on the ‘Sport 4 Equipped’.
Some owners sought a way to lock the motor without removing the battery.

Bottom line

Expert reviews, trek powerfly 5.

The Trek battery holds a good charge… I reckon there’s enough power to last 60 to 80 miles if you’re careful.

Trek Powerfly 4 on Exmoor Review

…outstanding fun with steep descents and river crossings followed by challenging climbs which the Powerfly managed with such ease! …I was surprised at the sub-20-mile range I achieved on this test-ride…

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Trek Powerfly 4 Gen 4 Review

Last updated January 17, 2024

All of our bikes are electric, but all of our writers are human.

CHARGE TIME

Trek Powerfly 4 Gen 4 Review: Takeaway

The Trek Powerfly 4 is the cheapest electric mountain bike made by Trek. This doesn’t take away from its great components and rideability, though. It’s an eMTB designed for lighter trail riding with its larger wheels that smooth out the bumps on the rough spots. Relatively light yet powerful, the Trek Powerfly 4 Gen 4 is an ideal electric mountain bike that doesn’t break the bank.

Ideal for...

E-bike overview.

The Bosch Performance CX motor gives a real kick with up to 85Nm of torque, meaning that you can pull away on a steep and muddy hill with confidence. Power delivery is smooth so you won’t spin the rear wheel should you push too hard. The Bosch smart system offers enhanced ride control with navigation and activity tracking via the eBike Flow app.

Packaged with the Bosch Performance CX motor, is their Walk Assist mode that helps push your e-bike up those tough hills you’re bound to encouter. The LED remote let’s you enable Walk Assist and control the level of pedal assist you need. The LED lights are bright and easy to see, even in bright sunlight.

One thing that Trek does with this electric bike is fit different equipment to different-sized machines. For example, on the XS and S framed machines, it has a 27.5” wheel size, while on the M, L, and XL sizes have a 29″ wheel. The frame on the smaller e-bikes are also slightly different, offering a curved top tub for sizes XS and S, while frame sizes M, L, and XL have a straight top tube.

Trek has thought about everything, not surprisingly. Rack and kickstand mounts are readily avilable, as well as an integrated speed sensor for those riders looking to use the PowerFly 4 as more of a trekker than a day-rider trail e-bike.

Reasons to Buy

If you want an electric bike but don’t want to empty your bank account, the Trek Powerfly 4 Gen 4 is a very good machine to consider. At the lower end of the premium spectrum, the Trek Powerfly 4 will be worth every penny when it comes to an electric mountian bike that will look after you on the road or trail.

Designed not to embarrass you on the trail, it works well on longer cross-country rides. Its battery will be good for a 35-mile ride on tougher terrain, and the power of the Bosch Performance CX motor will leave you breaking a sweat only if you’re going easy on the battery.

When it comes to speed control, the electric bike won’t let you down even on steep tracks in wet conditions with its Tektro hydraulic brakes, and on 203mm rotors, they won’t fade even if used a lot.

Things to Consider

If you want a genuinely inexpensive electric mountain bike, there are others like the Rad Power brand of electric bikes, but few pack as many high performance components as the Trek Powerfly 4 Gen 4. This isn’t the cheapest eMTB out there, but it is very inexpensive for a high-end machine.

Specs & Components

The specs above come from the manufacturer and may vary from what you’ve experienced. Notice something that needs correcting? Let us know .

Offering up to 85 Nm of torque, the light but punchy Bosch Performance CX motor delivers the power you need for riding off-road, including rapid direction changes and tackling steep climbs as you journey around the woods or mountain.

Its Bontrager XR3 Comp tires won’t go quickly on hard, flat surfaces due to higher rolling resistance, but this isn’t what the Powerfly 4 is about — it’s about fun in the mud and on loose surfaces. As such, the motor won’t achieve great flat-out speeds, but it’ll more than make up for it in raw power over the rough stuff.

The 500 Wh battery on the Powerfly 4 will give you a good day out on singletrack and a reasonably long day in the saddle on an off-road adventure. However, there’s no option for a range extender, so if you’re looking for more than 35 miles per charge, choose an eMTB with a range extender or a 625+ Wh battery.

Leaving your gear at a base while doing singletrack will give you more range, but if you’re carrying your pack on an adventure, this will eat into your mileage. Muddy terrain and foul weather can impact range, too.

Sat in a trekking position, you’ll use your upper body to shift your weight according to riding conditions. This could mean you get tired in your arms, chest, and shoulders after a long ride.

Sizes XS and S in the Trek Powerfly 4 range come with 27.5” wheels, while sizes M, L, and XL come with 29” wheels. Either way, they’ll smooth out the rough terrain.

The XS version of this eMTB hardtail electric bike comes with an 80mm travel SR Suntour fork, while all larger sizes have a 120mm travel fork. Both are well-suited to rough terrain.

Though Trek offers a lifetime warranty on the frame, if you haven’t looked after this e-bike, the warranty may be voided.

Clean the bike and oil its working parts after every ride. Keep an eye on chain stretch — change it when it gets to 1 mm per link, and look out for bent/broken teeth on the cassette and front chain wheel. Also, keep an eye on brake pads and hydraulic fluid. Though the Powerfly 4 is waterproof to an extent, take care when it comes to river crossings, as it isn’t designed for complete immersion!

Being a serious electric mountain bike, the Trek Powerfly 4 also looks the part. The clean lines and nice shapes of the frame along with its overall geometry combine to make for a good-looking eMTB.

The choice of colors is good too, from the loud red and black scheme to the muted gray and black. Overall, this bike looks like it means business when thrown about the tracks and trails.

We personally research and test every e-bike featured in our reviews and guides to provide accurate, data-driven recommendations. Learn how we review.

About Our Editorial Team

Meet Our Editorial Team

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Trek Powerfly 5 Review

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When it comes to hardtail electric mountain bikes there’s an awful lot of choice (if they’re in stock) from the big-name manufacturers. When one of my friends called me last week to say he’d brought a Trek, I was eager to try it out. In this Trek Powerfly 5 review, I will take a closer look at the specifications and share with you my opinions after spending a couple of hours with it on Bodmin Moor .

Introduction

Trek’s mountain bike heritage goes back to 1983 when they released the 850 – fast forward 28 years and they have a comprehensive range of high-end e-MTBs ranging in price from just over £2500 to up to an eye-watering £11500.

At £3750 the Trek Powerfly 5 sits at the upper end of their hardtail range and benefits from the latest Bosch Performance Line CX motor with a 625Wh battery. The Powerfly 5 also boasts Rockshox forks and SRAM Eagle SX 12-speed drivetrain.

My friend had been talking about upgrading his Cube Acid hardtail e-MTB for some time and we’d previously discussed the merits of the Trek. He recently took the plunge and purchased the bike reviewed here.

First impressions

The first thing that struck me about the Trek Powerfly 5 was how stunning the paintwork finish is – it’s a gorgeous bike in the ‘slate/volt’ colour scheme. Mind you, you’d expect nothing short of this on an e-bike costing more than a decent second-hand car!

Although the 17″ frame was a bit on the short side for me, with the seat post properly adjusted it felt quite comfortable. My friend paid an extra £200 to have the optional Bontrager dropper seat post fitted, which is a must if you’re going to be tackling the trails.

Riding some rock-strewn single track the Trek feels sure-footed. For an older rider like me, the Powerfly 5 inspires confidence (maybe a bit too much) and is great fun to ride. Where this e-bike comes into its own is when the trail turns upwards – it’s not the first Bosch CX I’ve experienced but this motor never fails to impress me with its 85Nm of torque. Riding up steep tracks is helped even further by the trail-busting SRAM Eagle 11-50 12-speed rear cassette, meaning you never run out of gears.

Although my ride was fairly brief I was thoroughly impressed with the off-road abilities of the Trek, it’s a great all-around package suitable for beginners, intermediate or the older more experienced cyclist who’s returning to mountain biking after a long break. Below I will go into more detail on the components.

Check out the 2023 Powerfly 5 from Trek

Electric components

The high-end mountain bike world is dominated by either the Bosch CX or Shimano Steps E8000 / EP8 of Brose motors. It’s good that manufacturers recognised the demand for a greater battery range and the Trek Powerfly 5 comes with the Bosch 625Wh power tube battery which is neatly integrated into the frame.

Bosch Performance Line CX

The Bosch Performance Line CX motor benefits from several upgrades over the previous model, most notably the 85Nm torque output offering the rider up to 340% assistance.

There’s the new Extended Boost mode which makes negotiating rocks and exposed roots on the trail much easier, particularly uphill. This means the bike can be manoeuvred with greater agility on technical sections.

Revised e-MTB mode – This ensures the rider is well-prepared for whatever situation the trail has in store. New sensor and motor control functions give mountain bikers a much wider range of dynamic and natural support.

The Bosch motor is smooth and the whine from the motor is quiet and not intrusive. Performance is as good as you will find on a road-legal e-MTB and it adds a whole new dimension of fun when riding off-road.

625Wh Powertube battery

I first rode an e-bike with a 625Wh battery at the end of 2019 and having the extra capacity will ensure riders can spend more time enjoying the trails. The range will depend on lots of different variables but 50 miles should be achievable when riding off-road – check out the Bosch range calculator for a rough estimate of battery range from the 625Wh battery.

Bike components

Quality components are a must on electric mountain bikes at this price point and the Trek Powerfly 5 doesn’t disappoint. I have gone into more detail on the specification below.

trek powerfly 5 with sram 12 speed gearing

The gearing is comprised of an SRAM Eagle single-click 12-speed shifter with an NX Eagle rear derailleur and 11-50 cassette – as the Bosch uses an ISIS-type crank interface, an SRAM X1 crankset is fitted. The drivetrain is finished off with a high-quality SRAM SX Eagle chain.

Braking is provided by the excellent Shimano MT-420 4-pot calipers with 203mm brake rotors – as expected these brakes work well and will provide more than enough stopping power for most riders. I found them to be excellent, and you only need to use one finger for braking.

If found the 120mm Rockshox Recon RL suspension forks worked very well indeed. Although they are at the lower end of Rockshox forks they feature trickle-down technology from more expensive forks and feature Motion Control™ damping which features low-speed compression adjustment to lockout.

Wheels and tyres

The wheelset is a disc-specific Bontrager Kovee Comp 23 with Boost 110, 15 mm thru axle at the front and a Boost 148, 12 mm thru axle at the rear. Tyres are Bontrager XR3 Comp, wire bead, 30 tpi, 29×2.30″ which seemed to handle the damp moorland trails very well. If you wish to upgrade to a tubeless set-up these wheels are tubeless-ready. The hub is a standard 9/10 speed Shimano freehub.

Frame and finishing kit

For the frame Trek use their Alpha Platinum Aluminium which is their premium lightweight aluminium designed for maximum strength and minimum weight. As I’ve mentioned above the finish is exquisite and looks incredibly hard to wear. The frame also benefits from internal routing for lights (should you choose to fit them) and a direct kickstand mount.

All of the finishing kits are all by Trek’s in-house brand Bontrager which is of excellent quality. This bike also had the optional Bontrager Line Dropper seat post fitted which costs an additional £199.99.

If I was in the market for a capable hardtail electric mountain bike I’d be very tempted by the Trek Powerfly 5. It’s great fun to ride and feels very capable on a rough single track – the handling inspires confidence and that Bosch motor is the icing on the cake!

There are cheaper options available and if you’re new to electric mountain biking you may not want to spend quite so much on your first purchase.

Having said that, if I had the money to spend on a nice hardtail e-MTB the Trek would certainly be on my shortlist. Other plus points are the excellent brakes, SRAM 1 x 12 gearing and the 625Wh battery.

My friend has brought this e-bike with the intention of keeping it for a good few years and I’ll post any relevant updates here.

Thanks for reading and if you have any questions or comments please leave them below.

Meet Tony, a passionate e-bike advocate and enthusiast who discovered the life-changing benefits of electric bikes back in 2016. Tony’s technical experience within the e-bike field was gained while running a successful electric bike conversion business for 5 years in his home county of Cornwall, UK.

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Thanks for the review, even though I discovered this after buying my Powerfly 5, I still found it useful and relatable. I picked mine up in November and have given it a good testing over the winter months – what a brilliant bike! Even though I could have spent less for a Cube reaction, which I almost did. I’m glad I spent more on this. The only issues I have encountered are tyre pressures since going tubeless, but I think that’s more the tape inside rather than the rims thenself.

2023 Trek Powerfly FS 4 Review

Are you planning to buy an electric mountain bike? Do you have plans to hit the trails and mountains with a reliable power-assisted model?

Since its launch, Trek’s Powerfly FS 4 has become a fan favorite among mountain bikers. Its blend of power and agility make it an ideal choice for cyclists looking for serious performance on their rides.

The Powerfly FS 4 is designed to offer unparalleled experiences both off-road and on urban streets.

In this review, we look at the features that make this e-bike one of the best in its class and also elaborate on what it brings to the table in terms of value for money.

2023, Trek’s model year for all mountain e-bikes is here and the Powerfly FS 4 is their latest offering.

It’s a bike that caters to riders looking for a full suspension electric mountain bike with enough torque to take on anything you throw at it.

The Powerfly FS 4 also has several features that are sure to appeal to more serious cyclists, such as an optimized magnesium rocker link, adjustable assist levels, rack and fender mounts, and much more.

This review will go over the features of the 2023 Trek Powerfly FS 4 and provide an overview of its performance.

Take your off-road adventures to the next level with the 2023 Trek Powerfly FS 4, a performance mountain bike equipped with the latest technology to optimize your trails.

Featuring a Shimano 10-speed drivetrain and one of a kind eMTB motor system, this electric bike allows you to push beyond your typical limits and explore places that would normally be inaccessible.

With an upgraded suspension system, increased range, and safety features such as room for integrated lights and an updated dropper post design, you will experience no limit rides.

– Shimano Deore 1×10 speed drivetrain shifts quickly and smoothly.

– Motor system provides automatic support during off-road ascents.

– 120mm SR Suntour XCR 34, air spring suspension front fork improves agility on trails.

– TranzX dropper post design for quick seat adjustment on the fly.

– Increased range for longer riding distances than ever before.

– High volume Bontrager XR3 Comp tires provide great grip even in tough terrain conditions.

– Bosch PowerTube 500Wh battery powers the entire drive train without weighing down ride.

Motor & Battery

The 2023 Trek Powerfly FS 4 comes equipped with a Bosch Performance CX electric motor that provides up to 85 Nm of torque.

You can expect roughly 40 miles (64 km) on the 500Wh battery.

Frame & Suspension

At its core, the 2023 Trek Powerfly FS 4 is built with an oversized aluminum frame that offers 100mm travel at both ends in either 27.5 or 29er wheel sizes.

To ensure your ride stays smooth no matter what terrain you encounter, you can run up to a 120mm front fork.

If you want crisp shifting performance even in steep sections then this bike has you covered thanks to its 1×11 drivetrain consisting of Shimano Deore level components.

The cassette offers a 11-46t and its paired to a 36t chainring up front mounted to a FSA Bosch crankset.

Other features include powerful Tektro hydraulic disc brakes for assurance when descending rough trails as well as custom Bontrager Alex MD35, tubeless compatible wheels that have been designed especially for e-MTB use.

It also comes with a remote fork lockout so you can instantly stiffen your front end when climbing those stubborn hills.

Final Verdict

All things considered, if you’re looking for an all mountain electric mountain bike then the 2023 Trek Powerfly FS 4 should definitely be one of your top choices due to its versatile components and great price point made possible through countless hours of engineering from Trek’s research team.

Order online and have it shipped to your local dealer for final assembly!!

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Electric Bikes
Powerfly 4 Gen 4

Trek Powerfly 4 Gen 4 - 2023

Due to supply-chain issues, Specs are subject to change without notice.

* Subject to change without notice.

Part Numbers

Trek Powerfly 4 Gen 4 Color: Living Coral /Solid Charcoal

Powerfly 4 Gen 3
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Trek Powerfly 7 LT Review

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A stealthy, long travel, all-mountain electric bike with longer wheel base and adjustable seat stay hardware to optimize geometry for climbing and descending, proprietary "Active Braking Pivot" rear suspension reduces skipping, Knock Block headset and Hartzell Hug impact-absorbing downtube bumpers allow for straight downtube
Trek-invented Boost hub spacing improves spoke bracing angle and support for larger plus sized tires, quick release thru axles are sturdy and easy to work with, direct-link rear suspension stiffens the chain stays and bottom bracket without compromising performance thanks to the DeonAir rear shock
Beautiful battery integration, Bosch PowerTube 500 disappears into the frame, keeps weight low and center, provides space for a bottle cage mount and accessories above, sturdy locking core from ABUS with keyed-alike code, battery has a built-in handle for secure removal and transport
Bosch Purion display does not have an active Micro-USB port, the PowerTube 500 is heavier than the older PowerPack design, longer wheel base isn't as nimble and the motor integration is flat vs. angled up (unless you get the carbon model), the motor is heavier than the competition, produces more noise, introduces some drag when unpowered

Video Review

Body position:, suggested use:, electric bike class:, learn more about ebike classes, availability:, model year:, bicycle details, total weight:, battery weight:, motor weight:, frame material:, frame sizes:, geometry measurements:, frame types:, frame colors:, frame fork details:, frame rear details:, attachment points:, gearing details:, shifter details:, brake details:, seat post length:, seat post diameter:, tire brand:, wheel sizes:, tire details:, tube details:, accessories:, electronic details, motor brand:, motor type:, learn more about ebike motors, motor nominal output:, motor peak output:, motor torque:, battery voltage:, battery amp hours:, battery watt hours:, battery chemistry:, charge time:, estimated min range:, estimated max range:, display type:, display accessories:, drive mode:, written review.

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The Trek Powerfly electric mountain bike models have been completely redesigned and updated for 2019, and EBR was invited to attend a launch event at Mammoth Mountain resort in California to check them out for this review. I brought my friend Brandy, who is a beginner mountain biker, and we spent the day hearing about updates and then going for rides (up and down the lower sections of the mountain). Mammoth sits at roughly 11,000 feet (3,352 meters) elevation above sea level, and there was a small forest fire burning nearby during our visit… so it was awesome to have electric assist, to make it easier to breathe. Summertime is beautiful in the Inyo National Forest, Mammoth is a lava dome volcano and the terrain is really unique and varied (featuring soft volcanic pumice in some areas and steep jagged rock in others). We got to interview one of the Mammoth staff and learn about the resort’s rich history of innovation… and there was a little celebration happening because the mountain has become one of the first in the US to officially allow Class 1 electric bicycles on national forest land. Anyway, it was pretty warm in the afternoons and I’m certain that we couldn’t have ridden as far or stayed as cool and comfortable on traditional mountain bikes. It certainly wouldn’t have been as much fun for the two of us to ride at a similar pace together. I’d consider myself an intermediate mountain biker, but I have an injured left knee and have become a big fan of e-bikes as a way to keep up with advanced riders and just go further.

All of the Powerfly electric bike models from from Trek share the same Bosch PowerTube 500 battery and Performance Line CX motor. They range from affordable hardtail models called the Powerfly 5 and Powerfly 5 Women’s (which has a slightly lower, sloped top tube), up to the Powerfly 5 FS (full suspension), the Powerfly 7 FS, the Powerfly 7 LT (long travel) which was the focus of this review, and the Powerfly 9.7 LT (a carbon fiber long travel version). If I were purchasing one of these models for myself, I’d probably go with the 7 FS because I don’t need the longer travel suspension for aggressive downhill riding and prefer the all-black color scheme on that model, which hides the black motor casing. If money were no object, the Powerfly 9.7 LT would be nice because Trek was able to tilt the motor a bit for a nicer looking integration and carbon fiber tends to reduce jitter and weigh a bit less. The 7 LT came in around 52.3 lbs (23.7 kg) which is about average for bigger suspension, thru axles, plus sized tires, and the PowerTube 500 battery (which weighs more than the older external PowerPack plastic batteries). In recent years, I discovered that Trek created the wider Boost axle and bottom bracket standard. This allows for a stronger spoke bracing angle which supports plus sized tires (2.6″ to 3.0″ width). You can see that on these bikes, and I was told that the Q Factor is 190 mm and that the frame was made a bit long to help keep the front wheel down on steep descents. Despite this, I managed to lift the front wheel on a couple of occasions during our ride test. Trek has another innovation in store for people who are willing to spend some time unscrewing bolts… the seat stays can be made slightly longer or shorter by flipping this washer called a Mino Link which changes the fork angle by about one percent. I haven’t seen this on any other electric mountain bikes. Same goes for the Lock Block headset, designed to stop the crown from bashing into the downtube in the event of a crash. Other frames utilize curved downtubes that aren’t as stiff. The rear suspension design uses a rocker link and vertical shock position to keep as much weight directly below the rider (at the center of the frame) as possible. Older Trek models had a floating pivot design but I was told that they have moved towards direct frame mount in an effort to stiffen the chain stays and bottom bracket. The rear wheel mounts to a pivot point and benefits from an Active Braking Pivot (ABP) design meant to isolate suspension movement from braking, to keep your rear wheel in contact with the ground and reduce stiffening and brake squat. Lots of fancy proprietary engineering happening here. As a more casual rider, I was drawn to the clean internally routed cables, tight motor casing with clever molded chain guide and alloy skid plate (with bottle opener), double-sided slap guard and chain suck protector wedge, and powerful 203 mm hydraulic disc brakes with quad piston calipers. As someone who frequently rides with just one hand on the bar (because I’m filming), it’s nice to have good brakes. For whatever reason, the brakes were squeaking a bit during my rides, and that could be due to some hand oils on the rotors from transport, assembly, and demos. It was great to work with the Trek team to be fit to the frame properly and then have the suspension sagged to my body weight. Both air shocks have black anodized coatings to minimize stiction, offer rebound, and compression adjust… they felt great. With five frame sizes available for each of the Powerfly models coming to the US, and a vast network of dealers, you’ll be able to find a great fit and get set up properly like we were.

Driving the bike is a planetary geared mid-motor that’s rated 250 watts nominal and 600 watts peak. Depending on the market you’re in, the top speed may be 32 km/h (20 mph) or 25 km/h (15.5 mph) to comply with local regulations. It’s a Class 1 product, meaning that it utilizes pedal assist only and is allowed on the widest number of trails (including at Mammoth). With a peak torque rating of 75 Newton meters, it’s one of the most powerful centerdrive electric bike drive systems on the market, but it’s also one of the loudest. If you’re riding on gravel trails or through the woods, the high pitched motor sound is mostly masked by tire contact. What’s so impressive about this system is that it responds to rear wheel speed, pedal cadence, and pedal torque over 1,000 times per second and incorporates software driven shift detection. Bosch is well known for their motor controller system and the Performance Line CX motor offers an eMTB mode that was developed in tandem with professional mountain bike riders. The motor itself weighs a bit more than some of the competition at roughly 8.8 lbs. There’s definitely room for improvement here, but Bosch has earned a reputation for quality and reliability. They were one of the first big companies to enter the US with brands like Haibike and have faithfully served the North American market longer than Brose, Shimano, Yamaha, and most others. What you trade in millimeters and grams is made back through reliability and leading performance. Perhaps my favorite part about this motor, and a feature that is especially relevant to electric mountain biking applications, is the higher pedal RPM support. Basically, you can pedal fast in a high gear and the motor will continue supporting you at up to 120 pedal strokes per minute. I tried to demonstrate this in the video review above… Some other motor systems cut out at 100, 110, or begin to fade near 120. This motor can handle steep climbs but also supports faster spinning on cross country sections. It empowers you as a rider vs. forcing you to adapt to electric assist. I also appreciate the walk mode feature that was working on the latest batch of Powerfly ebikes. This is a feature that most earlier (pre-2018) Trek models had disabled, but it comes in very handy for those moments when the terrain is too difficult to ascend or you’ve got a flat. The 11-speed Shimano Deore XT drivetrain empowers the Bosch mid-drive to climb and can easily pedal the bike beyond the top assisted speed. You’ve got an 11-46 tooth cassette and a proprietary 15-tooth (38 tooth equivalent) chainring to work with. The motor utilizes a reduction gearing system to spin the 15 tooth cog 2.5 times per single crank revolution and this causes a bit of mechanical drag that eats into efficiency when the bike is unpowered or pedaled beyond the top assisted speed. Some benefits might be faster starts and stops along with excellent chain retention… but the chain is also positioned very near the chain stay, so there’s more contact happening as you ride over bumps. Thankfully, the Deore XT derailleur does come with a one-way clutch system, a little grey lever that can be clicked into the up position to tighten the derailleur spring and reduce bounce. Position it in the forward position for easier wheel maintenance.

One of the most exciting new design features that Trek has introduced for their 2019 mountain models is the Bosch PowerTube 500 battery integration. In the past, Trek has done a great job of matching and smoothing the external plastic PowerPack battery… insetting the packs and even using plastic covers for protection and aesthetic enhancement, but it still stuck up above the downtube and stood out. It limited space for adding bottle cage bosses and other accessories in the main triangle of the frame. The PowerTube, by contrast, is completely hidden inside the downtube and it stays out of the way completely. The battery bay is wide open when the pack is removed and this actually makes it easier for shops to adjust shifter, brake, electrical, and seat post dropper cables. The battery pack is encased in an aluminum alloy shell and has a second layer of alloy protective covering screwed onto the right side, painted to match the downtube design of each specific model. We were told that the shield does not add to the structural integrity of the frame (and for the carbon fiber 9.7 model it is still aluminum alloy) so it definitely adds some weight. In addition to the shield, there’s also a plastic top cap with flip-up handle. This is a welcome feature because it makes removing and transporting the $900+ battery much easier and safer. You first have to unlock the pack from the left side of the frame and then it pops out about halfway before you can press a lever on top (where the handle is) and pull it the rest of the way out. This two-step approach is also very nice for safety, but it only works on the way out… When you’re mounting the pack, you actually have to insert the key and twist it on the left side of the frame while trying to balance and push the battery pack from the right. I wish the halfway step did not require a key so that the process of balancing everything could be less precarious. I asked about this and was told that Trek wanted to make the locking mechanism secure and reduce rattling, so this is why the key must be turned. Anyway, I do appreciate the thought that went into putting the battery door on the left side of the frame vs. the bottom (where the pack could drop out easier on removal due to gravity), the top (where the pack could collide with the top tube from below), or the right (which would encourage riders to lay their bikes down on the more delicate drivetrain side). But still, the key port is on the left, so if you do lay the bike down it could be a challenge to reach under and twist. The charging port is also on the left side of the frame, directly in the path of the left crank arm. The Bosch plug interface is a wider proprietary design that seems sturdy, but it’s still worth being careful not to snag. There’s a little plastic door protecting the charging port and this is a nice upgrade from the stand-alone rubber plugs I see on some other models that could get lost when they don’t have leashes. I do recommend being delicate and thoughtful when laying the bike down on the left side because the larger 203 mm disc brake rotors could get bent easily (especially in off-road environments with sticks and rocks strewn about). Amazingly, the left chain stay has a 20 mm threaded tab for adding a kickstand! So, if you’re buying an all mountain electric bike and want to ride it around with a jittering stand, you can do that! Or, you could ride it around an urban environment and take on curbs, grassy hills, and pretty much anything else, and still stand it up straight in your garage and at the bike rack. Nice one, Trek :D Just like the older Powerpack batteries, the new PowerTube can be charged on or off the frame, and Bosch continues to lead with their compact, lightweight, faster 4-amp charger. I’d definitely remove the ~7.4 lb battery before lifting the bike for service or mounting it to my car rack. The battery has a little LED indicator on the base (where you plug it in) that communicates a rough estimate of fill level. To maximize lifespan, keep the battery charged over 20% as frequently as possible and avoid extreme heat and cold. The PowerTube is longer than the older PowerPack, it’s less universal because of the proprietary covering that each company is making for themselves, and it’s less available to travelers (or between bikes in the same family due to the covers). Sure, you could borrow a different colored battery for a long trip if you and a friend both have Trek ebikes, but imagine trying to stick this thing into a backpack or pannier bag. It’s just not as compact or convenient as the PowerPack… So I kind of miss that from the older Powerfly models, which still looked great. The 36 volt 13.4 amp hour size is about average for this generation of ebikes, and the lithium-ion cells are above average in terms of quality and warranty support. I really like and trust Bosch, but compared to the custom 36 volt 17.5 amp hour packs for some Brose powered ebikes that actually weigh less, it leaves something to be desired.

Activating the electric systems on this bike is fairly straightforward. You charge and mount the battery then press the power button on the top edge of the little display panel, which is mounted within reach of the left grip. This is the Bosch Purion display panel , one of the nicer compact offerings on the market right now. It cannot be swiveled to reduce glare easily, is not removable for protection, does not show as many menus (missing Clock, Max Speed, Average Speed, Trip Time, Shift Recommendation), and does not have an active Micro-USB charging port like the larger Bosch Intuvia display . However, it keeps the handlebars clean and may not get damaged as easily in the event of a tip. This is a very popular display panel for electric mountain bikes, which often strive to go “below the radar” and limit fancy accessories that could get broken or attract unwanted attention. I have grown to accept it but have a few tips for use… the + and – button pads that raise or lower power for assistance click in at an angle towards the right. They are attached near the left edge of the control pad and pivot in towards the LCD. The right edge is their sweet spot, sometimes even the middle can be difficult to click in or just inconsistent. The screen itself glows faintly in white at all times, which shouldn’t draw much power, and is handy when it’s early morning or later at night and you need to read it. Once you get the hang of things, you really don’t have to look down at all because you can notice the clicks of the button pad and feel the boost in power. Furthermore, if you set the drive mode to eMTB (which is third up from the bottom: Eco, Tour, eMTB, Turbo), you might not want to click at all because the mode is so dynamic and good. Holding the + button will turn a lights icon on and off but since the Powerfly models don’t come with lights (at least not in the USA), this doesn’t really do anything. Some dealers may be able to wire in lights for you at an extra charge, and this could be really cool for people who enjoy moonlight rides and want to take advantage of the high capacity battery onboard. Holding the – button will cycle through trip distance, odometer, assist level, and range. This range section is dynamic, so you can see the bike calculate how far it thinks you can go based on the last mile of riding, your current state of charge, and the chosen level of assist. On the lower edge of the control pad, mirroring the power button, is a walk-mode button. When you’re in any of the four levels of assist (not Off) press walk-mode once and then hold the + button to have the motor slowly assist you when walking the bike, as mentioned earlier.

This review video and writeup was longer than normal because I wanted to provide some guidance for the entire lineup. Trek is a leader in the cycling space, one of the top three manufacturers globally (Trek, Giant, Specialized), and their electric bicycles are some of my favorites. Trek didn’t pay me to say that and I didn’t get paid for this review… but they did provide a really cool experience for my friend and me. The past six years of my life have been dedicated to electric bikes, ever since I got a knee injury and wanted to keep commuting to work daily. My preference is full suspension mountain bikes because I also have neck and back injuries… and I love the new plus sized tires that provide increased float, traction, comfort, and reduce deflection on big rocks. It’s neat to see a few different levels of bikes, a women’s specific model with slightly lower standover height, and the carbon frame option. I was riding the 17.5″ frame and probably would have been better off on the 18.5″ because I’ve got such long legs. The Trek rep named Ross told me that they were targeting more options for the mainstream “middle of the bell curve” and that makes a lot of sense. It’s nice to have a dropper post, fully adjustable suspension, and a frame that is well-balanced front to back. the drive systems are positioned well and perform incredibly, but do produce some extra noise compared to some competitors. For those who are new to the 650B tire size utilized here, it provides the rolling momentum and lower attack angle of 29ers with increased width for traction. It makes perfect sense for an electric bike because the added weight and drag of the tires are offset by the highly efficient motor. The Bontrager tires that come with this model have reinforced sidewalls to handle lower pressure (increased tire flex) and the tires and rims come tubeless-ready for easy conversion. You’ll get less pinch flats, save ~200 grams total, and get fewer flats because of the self-sealing nature of tubeless sealant. As always, I welcome questions and feedback in the comments below, I’ll do my best to answer, and you can connect directly with other owners and enthusiasts in the Trek electric bike forums .

The Powerfly line of electric bikes from Trek all share the same battery and motor integration, this keeps costs lower and makes fixes easier, I was amazed that all six of the models being introduced to the North American market for 2019 (Powerfly 5, Powerfly 5 Women’s, Powerfly 7 FS, Powerfly 7 LT, Powerfly 9.7 LT Carbon Fiber) come in five frame sizes! This ensures optimal fit
There are actually two “medium” frame sizes to choose from, I rode the 17.5″ but would have preferred the 18.5″ which is slightly larger (since I have longer legs), Trek really focused on the “fat part of the bell curve” with their sizes to serve most common use cases well by having two mediums
Trek only sells through dealers at this point, and this strategy allows them to provide the best quality control, assembly, and fitting… but they are also one of the three largest bicycle brands in the world, so their prices aren’t as high as some competitors, it’s the best of both worlds
The motor is protected from rock and log strikes by a long alloy skid plate, it’s vented to improve cooling and the large vent hole in the center is shaped into a bottle opener… which is fun, I really appreciate the plastic casing design on the right side of the motor as well, this doubles as a chain protector and guide, it’s even designed to help clear mud and prevent chain suck
Excellent use of slap guards, there’s a long rubber strip on the top and bottom portions of the right chain stay, this will keep the paint job in tact and reduce noise on rough sections of trail
The smaller Bosch chainring makes chain slap more common than with a standard sized chainring but the Shimano Deore XT derailleur minimizes this when you click the one-way clutch into the up position, tightening the springs to reduce chain bounce
Overall nice aesthetic, the paint job isn’t super busy and Trek has matched the black rims, seat post dropper, and suspension elements (including black stanchions) to the black paint accents… this is the case on all 2019 Powerfly models, I like the 7 FS best because the black motor blends with the black frame color
Sturdy thru-axles, Boost hub spacing, thicker 35 mm fork stanchions, a high-volume rear suspension, and frame-mounted rear suspension interface (compared to their older floating pivot) increase frame stiffness, handling, and efficiency of power transfer
Air suspension tends to be lighter, more adjustable, and these RockShox components have hard anodized stanchions to reduce stiction and perform better on smaller bumps, I appreciate the the proprietary rear pivot ABP design
The Bontrager XR4 tires are designed to be lightweight but still have reinforced sidewalls to be durable when running at low tire pressure if you decide to go tubeless, they ship tubeless ready with strips and valves included for easy conversion and that’s what the Trek reps recommended to me… I was told that plus sized tubes can run 100 grams a piece and tend to go flat more easily when running with low pressure, so it’s decent weight savings but most importantly helps you reduce pinch flats and reduce maintenance effort
The headset uses Knock Block to prevent oversteer and subsequent frame damage, even if you really crash hard and break the chips inside the Knock Block, the downtube has rubberized strike points for further protection
Internally routed cables look great and stay out of the way but are still easy to service because of the wide opening for the PowerTube battery pack
Internally mounted battery pack keeps weight low and centered on the frame, it stays protected inside an alloy (or carbon fiber) tubing structure with an alloy cover, Trek really thought things through and chose a right-side mount because it’s best to lay bikes down on their left side (to protect the drivetrain)
Another benefit to the PowerTube battery, with attached plate and handle here, is that you don’t have to worry about someone stealing/tampering with a non-locking plastic cover when the bike is at a rack, and there are just fewer parts to keep track of when you do remove the pack from the bike
One of the trade-offs with the Bosch PowerTube battery is that it does not come stock with a handle… Trek designed their own interface with two-step click (so it won’t flop out when you unlock it) and added a handle for secure and safe transport
Plenty of space below the top tube, in front of the seat tube, and on top of the downtube to mount accessories… Trek even included bottle cage bosses for all of the Powerfly models!
Excellent drivetrain, you get an extra wide 11-46 tooth cassette to handle All Mountain terrain… everything from climbing to descending with speed, I appreciate the durability and weight savings of a 1x drivetrain like this
Extra large 203 mm disc brake rotors with larger quad-piston calipers provide stopping leverage and improved cooling for those fast, long descents… sometimes I’ll see 203 front with 180 mm rear but considering the semi-downhill performance of this suspension setup and heavier ebike build (52.3 lbs total here) it’s a great hardware upgrade
Very nice 130 mm seat post dropper with internal cable routing, thicker 31.6 mm seat post sizing makes this part easy to swap out or upgrade
Trek really dialed in their rear suspension for the new line of Powerfly e-bikes, the Active Braking Pivot (ABP) rear link reduces lockup and skipping so the rear wheel can stay on the ground, the Rocker Link piece positions component mass (including the rear shock) directly below the rider for better handling, they optimized the leverage rate between the rear wheel and rear shock to provide excellent mid-stroke control for less bobbing, more stable cornering, and and better acceleration
Both seat stays have this “flip chip” adjustable washer called the Mino Link that allows you to change the frame geometry on the fly, when the link is extending the stays it provides quick performance for cross country quick-handling use but when you shorten the stays it slackens the head tube angle by about 1° for stable downhill riding, positioning the suspension fork to take hits more directly
The Bosch CX motor controller is extremely smart and consistent, it measures rear wheel speed, pedal cadence, and pedal torque over 1,000 per second while also listening for pressure changes from shifting and then easing off, this protects the drivetrain a bit from mashing
ABUS makes the locking core that secures the battery cover, it comes with a code for ordering additional keys or getting keyed-alike accessories such as folding locks
I was delighted to discover that the bike has provisions for mounting a kickstand on the left chain stay! I think it’s a 20 mm spacing with two bolts and Trek / Bontrager hardware would be compatible
The bike comes stock with the faster 4-amp Bosch charger that lets you spend more time riding and less time waiting, the Trek rep Travis told me that electric mountain riders tend to drain batteries faster because of all the climbing, etc. so it’s nice that the charger is also lightweight at ~1.7 lbs and very compact, the Bosch charger is one of my favorites
The display is compact, it won’t get damaged as easily in the event of a crash but is still fairly readable with large readouts, for such a stealthy electric bike with integrated battery, the Purion display matches the understated look
Trek is now enabling walk mode on their electric bikes! This is especially useful if you encounter a technical bit of trail that you aren’t comfortable riding or maybe you get a flat tire, considering that the bike weighs ~52 lbs, it’s nice to get help moving it
I really like the eMTB drive mode, it was designed by Bosch with help from professional mountain bikers who dialed it in so the power isn’t overwhelming but also doesn’t let you down… it’s a great “all around” assist level to use so you can focus on shifting gears, it’s especially nice to have with the Bosch Purion display panel because I have found that the buttons aren’t as consistent (press near the right edge, near the LCD display, because they pivot in vs. going straight down)
Another feature of the Bosch Performance Line motors that I really appreciate is how they can support higher pedal rates without fading out, you can reach 120 RPM (pedal strokes per minute) and the motor is still there for you, this means you don’t have to shift gears as frequently if you prefer to spin instead
The quick release wheels and removable battery pack make this an easy bike to lift, transport, service on the trail, and park securely
Trek invented Boost technology for wider, stiffer axles to support 29er wheels and now the 27.5″ plus sized tire setup with a wider bracing angle on the spokes, I love the knock-block stem, headset top cap, spacers and frame chip and rubber hartzell hug impact-absorbing downtube bumper backup protection system (to prevent oversteer into the straight shot downtube which could damage the fork and frame), by making the downtube straight they reduced the strength to weight ratio and improved stiffness
Excellent two year warranty covers everything on the bike, including the motor, battery and display system, and with a vast network of dealers out there, it requires less effort to get help
I appreciate the aesthetic that some ebike companies have been able to achieve by tilting the Bosch CX motor up and melding it into the frame, you can see this with the BULLS SIX50 EVO AM 4 and even Trek’s own Powerfly 9.7 LT Carbon which both use the Bosch PowerTube 500
As nice as the battery cover looks, and as useful as the handle mechanism at the top of the pack is, this battery pack weighs significantly more than the same-capacity PowerPack 500 which mounted on top of the downtube (as seen with this 2017 Trek Powerfly 8 FS model), the benefits of the PowerTube are lower weight position, nicer look, ability to mount bottle cage and other accessories in main triangle
The Bosch Performance Line motors are heavier and larger than the Brose S, Shimano E8000, and Yamaha PW-X while also having a wider minimum Q-Factor, but that’s less of an issue on this Boost frame because it’s setup with a 190 mm Q-Factor to reduce shoe strikes on the stays
The motor produces more noise than some competing products and uses a reduction gearing system to spin the proprietary chainring 2.5x for each crank revolution, this introduces a bit of drag when pedaling unassisted or beyond the 20 mph top speed
Minor complaint here, in order to mount the battery pack into the downtube bay, you actually have to insert and twist the key, you can’t just slam it in and have it click into place like some competing designs… this makes it sturdier and probably reduces rattling but also requires more time and energy to do, to go even further with this complaint, I wish that the first half-step could initiate without having to insert the key, just to keep the pack from tipping out if your hands are full and you’re struggling to balance the bike and insert the key… since the key inserts into the left side of the frame, that could be tricky to reach and do if the bike is actually on its side or leaning close to a tree
Standard chainring teeth vs. narrow-wide for increased grab, no chain pulley to raise the chain and reduce kickback (though I did not experience any), the molded chain guide should prevent drops and chain suck
Apparently most Trek mountain bikes do not come with pedals, it’s a minor gripe, you’ll have to pick up some aftermarket (I brought my own lightweight magnesium Wellgo pedals for this event)
The Purion display panel looks good and gets the job done, but it isn’t removable and doesn’t have a functional Micro-USB port like the older Intuvia display … I’ve heard that some ebike dealers will upgrade the display for you if you’re willing to pay, not sure if Trek will do this?
Official Site: https://www.trekbikes.com/us/en_US/bikes/mountain-bikes/electric-mountain-bikes/c/B512/
More Pictures: https://photos.app.goo.gl/gJpiKx7LmqNJ4hD98

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Comments (4) YouTube Comments

Great review, appreciate all the detailed information! A couple of questions…

Would a Powerfly be a reasonable choice for urban commuting and mixed use (50:50) recreational trail/road riding or would the set up and the knobby tires make these bikes a poor fit for the road?
If you were to compare the range of the Powerfly vs the Supercommuter +8s under identical conditions on the road, would the Powefly come up short? i.e. is the motor on the Powerfly tuned much more for torque than speed such that it would be range limited on the road?

Great question, Dave! I have done exactly what you suggest here because comfort is such a big deal for me and I only have had budget/space enough for one bike. I went with a full suspension Haibike, Easy Motion, and then Specialized over the past few years and just wore a backpack for supplies. The knobby tires produce more noise but otherwise work great in all conditions… not having fenders can mean you get wet and dirty, but there are some zip-tie mounting mud guards that could help with that as well. Regarding range… both the high speed motor and high torque motors use more energy, and a lot of this depends on where and how you ride, but the high-torque CX is my preference because it offers eMTB mode and can be ridden legally in more locations. You can always add some lights to the bike and wear a backpack to commute, but you cannot as easily take a Supercommuter off-road. I think you’d probably get similar range on both in urban environments :)

Hi Court, thanks for another fine review. Your mechanical camera shots keep getting better, so keep up with the shifting segments and suspension action, apparently taken using various frame or handlebar camera mounts… way cool. Additional closeups and camera time on suspension pivot points and other key mechanical features are always welcome. Please avoid the 1 hand MTB riding shots, use the helmet cam, I don’t want to lose you, man!

But I didn’t hear much about motor power. 250W just seems so small. Yes, I know there is a 15t in the front and a 46t in the back so even a 250W will climb dang near straight up, but still, how fast? I remember an old Hilltopper review you did and that little 250W motor chattered and stalled. Yes, I know that with the mid drive it is not going to chatter or stall on even a very steep hill, but aren’t you then limited to beginner speeds? Doesn’t that little 250W motor get boring after the first couple rides?

It seems that quality mid drives only come in 250W. Bafang makes 750W and 1000W but they are Chinese motors that don’t last and have some poorly engineered features, poor workmanship, and low grade materials (I’ve had my BBS02 apart 5 times, burnt winding, blown anti-vibration O ring, stripped plastic gear, broken steel ring gear teeth, blown controller FET).

Does a Japanese, European, or American manufacturer make a well engineered, reliable, mid drive in the 500W to 1000W range?

Thanks for the encouragement around frame shots, and your concern for my safety! Regarding motor power, think of it like 600 watts and up to 75 newton meters with an efficiency of 250 watts for flat sections. The Bosch Performance Line CX if very capable. It’s smarter and much more dynamic than other ebike motors (especially hub motors that tend to hype their peak output). In terms of mid-motors, I have found that the Bosch drive is one of the zippier and sportier feeling systems, I don’t think you’ll be bored at all. You are correct that Bafang has a series of more powerful motors, and that they tend to use less sophisticated sensors and possibly lower quality hardware. I haven’t spent as much time with those motors digging in the way it sounds like you have. As for premium mid-drive systems that reach into the 1,000 watt range… no, I think the Bosch CX, Brose S or S Mag, Shimano E8000, and Yamaha PW X are the best to consider and I’ve made a little comparison video with steep climbing that you can check out here .

Trek Powerfly+ FS electric mountain bike - first look

Trek throws its hat into the rapidly-expanding full suspension e-MTB arena

Jon Woodhouse

Trek has revealed its new Powerfly FS+ electric mountain bike, and in doing so, joined the fray of off-road capable, electrically-assisted machinery.

The Powerfly FS+ uses a Bosch pedal assist system, paired to a 120mm travel, 27.5in-wheeled frame. The Powerfly+ will be offered in full suspension and hardtail versions, as well as in women's-specific models. Where the Powerfly+ differs from other full suspension e-bikes is that the motor has a custom mount and case, which allow the use of shorter chainstays and a lower shock mounting. This gives what Trek believes is class-leading handling.

While mountain bikers in the UK and US tend to be dismissive of e-bikes, enthusiasm in Europe is definitely building. Because of this, the Powerfly+ FS was developed by Trek's European office, which is more familiar with this sector. But, as John Riley, Trek's MTB Product Manager, said: “Making a bike like this isn't as easy as just taking a mountain bike and putting a motor on it.” Trek states the Powerfly+ will not be available in North America.

Trek's engineers have used the spare space in the standard casing to put their pivot closer to and slightly above the chainline, to give less squat under power. It also means they could give the Powerfly+ FS shorter chainstays than its rivals, a common complaint around the handling of such machines. It also means that the engineers could put the shock mount lower, in order to give an improved suspension kinematic that is better suited to the constant power delivery that electric assistance offers – compared to the 'lumpy' delivery of flesh-based propulsion.

The bike is fitted with a specially-tuned RockShox Monarch shock, with lighter low-speed compression damping. This aims to give a ride that's better suited to the requirements of an e-bike. It also means that standover is increased and that the bulk of motor, shock and battery is kept lower, inspiring greater confidence in riders who may be newer to the world of riding off-road.

Frame stiffness was a big issue, so the bike is built tough, using the same size pivots as the longer-travel Remedy

The Powerfly+ FS is available in five different frame sizes, from 15.5in to 21.5in. The 'Balanced Geometry' is broadly similar to Trek's standard off-road range, but higher front ends aim to give a ride feel that's less intimidating than more enthusiast-focused machines.

The custom case features an in-built chain device and, in what might be a nod to the more casual market, a bottle opener. Trek has also developed its own Motor Armour, which helps protect the sump of the bike. More importantly, the design means that it can use a smaller 15T drive sprocket without chain retention issues, instead of the narrow/wide tooth profiles of their rivals, which are limited to even numbers. With a drive ratio that gears up by 2.5, this is important in ensuring the gearing still works on steep climbs.

While the subject of off-road e-bikes is still anaethema to many, the time and effort that Trek has put into this bike – and the market – shows that they're only going to become a more common sight on trails as time goes by.

A 25-mile test loop with serious climbing showed the potential of the bike and system

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Samara Oblast, Russia

The capital city of Samara oblast: Samara .

Samara Oblast - Overview

Samara Oblast is a federal subject of Russia located in the southeastern part of European Russia, in the middle reaches of the Volga River, part of the Volga Federal District. Samara is the capital city of the region.

The population of Samara Oblast is about 3,132,000 (2022), the area - 53,565 sq. km.

Samara oblast flag

Samara oblast coat of arms.

Samara oblast map, Russia

Samara oblast latest news and posts from our blog:.

15 February, 2020 / Syzran - the view from above .

4 April, 2019 / Cities of Russia at Night - the Views from Space .

26 January, 2018 / Samara - the view from above .

4 December, 2017 / Stadiums and Matches of the World Cup 2018 in Russia .

21 November, 2016 / Park of the History of Equipment in Tolyatti .

History of Samara Oblast

The territory of the present Samara region became part of the Russian state in the middle of the 16th century, after the Kazan and Astrakhan khanates were conquered by the Russian state. In the 17th-18th centuries, the territory around the middle Volga was colonized by migrants from other regions of Russia and foreigners (in particular, the Volga Germans).

The intensified colonization of the region began only in the second half of the 18th century. From the mid 19th century, this region experienced economic growth. Samara became an important center of the Russian domestic grain market, which led to the development of trade and industry in the city. In 1851, Samara became the center of Samara guberniya (province).

In 1935, Samara was renamed into Kuybyshev (the historical name was returned in 1990). In Soviet times, industrialization had a serious impact on the development of the region. Construction of plants producing explosives, poisonous substances and ammunition began in the town of Chapayevsk.

During the Second World War, the region became one of the centers of the defense industry of the USSR. In 1941, an oil processing plant was put into operation in Syzran providing the army with fuel. Several aviation plants were evacuated to Kuybyshev from Moscow and Voronezh. They started production of “Il-2” attack aircraft.

More Historical Facts…

In 1942, a railway passed through Syzran to supply Soviet troops during the Stalingrad Battle. In 1941-1943, diplomatic missions of foreign countries to the USSR were located in Kuybyshev (Samara). In 1941, there were plans for transferring the capital of the country to Kuybyshev in case the German troops capture Moscow.

In the 1950s-1960s, this region was one of the leading centers of oil extracting in the USSR. In 1945-1951, Kuybyshev and Novokuybyshev oil processing plants were built. At the same time, construction of Zhiguli hydroelectric power station was resumed. It was put into operation in 1955. Because of this construction, the town of Stavropol was flooded and was rebuilt in a new place and received a new name - Tolyatti.

Later, the construction base created during the construction of Zhiguli hydroelectric power station was used to create a series of other large industrial enterprises in Tolyatti - “KuybyshevAzot” mineral fertilizer plant, “Tolyattikauchuk” synthetic rubber plant (1964-1966), the Volga Automobile Plant (1970), and the largest in the country and the world manufacturer of ammonia “TolyattiAzot” (1979).

At the same time, aviation production was expanded. Kuibyshev Aviation Plant began production of the most mass Soviet passenger medium-haul aircraft Tu-154. The Soviet rocket space program orders were also fulfilled at this plant (“Progress” rockets).

In the post Soviet period, due to saved economic potential, Samara oblast has become one of the main economic centers of the country.

Samara Oblast views

Samara Oblast scenery

Author: Dmitriy Siryachenko

Winter in Samara Oblast

Author: Ochin Vladimir

Author: Alexander Urgalkin

Samara Oblast - Features

Samara Oblast stretches from north to south for 335 km, and from west to east - for 315 km. The climate is moderately continental. The average temperature in July is plus 20.7 degrees Celsius, in January - minus 13.8 degrees Celsius.

The largest cities and towns of the region are Samara (1,137,000), Tolyatti (685,600), Syzran (163,000), Novokuybyshevsk (98,400), Chapaevsk (70,100), Zhigulevsk (50,000), Otradny (47,000).

The main resources of the Samara region are oil, natural gas, shale oil, various building materials, water resources. The local industry is presented by about 400 large and medium plants and over 4,000 small ones. The most developed industries are machine building (automotive industry) and metalworking, fuel, electric power, chemical and petrochemical, non-ferrous metallurgy.

AvtoVAZ is the largest manufacturer of cars in Russia and Eastern Europe. TogliattiAzot is the largest producer of ammonia in the world (about 8-10%). The 300-kilometer section of the main ammonia pipeline Togliatti-Odessa passes through the territory of the region.

Crop production specializes in the cultivation of wheat, barley, millet, buckwheat, sunflower, vegetables, and potatoes. Livestock is represented by production of cattle meat and milk, pigs, poultry.

Tourism in Samara Oblast

There are 19 monuments of archeology, more than 1,200 cultural monuments, 11 theaters, and 58 museums on the territory of the Samara region. The cities of Samara, Syzran and Tolyatti are included in the List of Historical Settlements of the Russian Federation.

The most developed areas of tourism: sightseeing tourism, cruises along the Volga River, medical and recreational, ecological, event, rural, and ethnographic tourism, caving tourism, bicycle and horse routes.

The most interesting sights:

The buildings of the Samara Drama Theater and the Samara Opera and Ballet Theater,
Stalin’s Bunker, House with Elephants, Klodt Mansion, Zhigulevsky Brewery in Samara,
Samara Space Museum,
Church of Sergius of Radonezh in Chapaevsk,
Kremlin, Sterlyadkin Mansion in Syzran,
Church of the Kazan Icon of the Mother of God in the village of Verhnee Sancheeleevo,
Museum of the History of Technology in Tolyatti,
House-museum of Ilya Repin in the village of Shiryaevo,
Sarbai Center of Folk Crafts in the village of Sarbai,
Center for Historical Modeling “Ancient World” with the dwellings of the Stone and Bronze Ages,
Zhiguli State Nature Reserve and Samarskaya Luka National Park - a UNESCO World Heritage Site. The Zhiguli Mountains are the largest mountain range in the region and, at the same time, one of the most beautiful places in Russia.

Annual festivals taking place in the Samara region:

All-Russia festival of the author’s song named after Valery Grushin (the first weekend of July),
“World of Bards” (in the end of August),
Festival of electronic music and extreme sports GES FEST (the second week of July),
“The Battle of Timur and Tokhtamysh”,
“Steppe races in the Samara estate of Leo Tolstoy”,
International festival “Drums of the World” (June),
Holiday “Syzran tomato” (mid-August),
“Holiday of a cherry pie” in the village of Shiryaevo,
International festival “Theatrical Circle” in Tolyatti,
Festival of Classical Ballet named after Alla Shelest.

Samara oblast of Russia photos

Nature of samara oblast.

Field road in the Samara region

Dandelions in Samara Oblast

Author: Vladimir Baboshin

Samara Oblast landscape

Pictures of the Samara region

Soviet past in the Samara region

Author: Dyomin Ivan

Church in Samara Oblast

Author: B.Yartsev

Churches in the Samara region

Author: Sergey Bulanov

Currently 3.03/5

Rating: 3.0 /5 (248 votes cast)

Lysanderhöhe (Am Trakt Mennonite Settlement, Samara Oblast, Russia)

Lysanderhöhe was a village of the Am Trakt Mennonite settlement in the province of Samara , Russia , founded in 1864, consisting in 1897 of 22 farms, with a population of 119. A part of the population joined the trek to Turkestan in 1891, while others immigrated to America. In 1914 the population was 146. Franz Bartsch , the author of Unser Auszug nach Mittelasien, was the teacher of the village school. After the Revolution of 1917 the cultural and economic level of the village began to decline. Some of the inhabitants went to Canada and others were exiled. Little is known about the fate of those who remained and the later status of the village.

Bibliography

Dyck, Johannes J. based on a text by W.E. Surukin. Am Trakt: A Mennonite Settlement in the Central Volga Region . Translated by Hermina Joldersma and Peter J.Dyck. Winnipeg: CMBC Publications, 1995.

Hege, Christian and Christian Neff. Mennonitisches Lexikon , 4 vols. Frankfurt & Weierhof: Hege; Karlsruhe: Schneider, 1913-1967: v. II, 709.

Surukin, W. E. und Johannes J. Dyck. Am Trakt, Eine Mennonitische Kolonie im Mittleren Wolgagebiet .North Kildonan, Man., 1948.

Cite This Article

Krahn, Cornelius. "Lysanderhöhe (Am Trakt Mennonite Settlement, Samara Oblast, Russia)." Global Anabaptist Mennonite Encyclopedia Online . 1957. Web. 7 Aug 2024. https://gameo.org/index.php?title=Lysanderh%C3%B6he_(Am_Trakt_Mennonite_Settlement,_Samara_Oblast,_Russia)&oldid=144294 .

Krahn, Cornelius. (1957). Lysanderhöhe (Am Trakt Mennonite Settlement, Samara Oblast, Russia). Global Anabaptist Mennonite Encyclopedia Online . Retrieved 7 August 2024, from https://gameo.org/index.php?title=Lysanderh%C3%B6he_(Am_Trakt_Mennonite_Settlement,_Samara_Oblast,_Russia)&oldid=144294 .

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Powerfly 4 Gen 4. $3,649.99. Model 5278932. Retailer prices may vary depending on location and delivery method. The final price will be shown in your cart. Powerfly 4 is our most affordable electric mountain bike. It's built with parts that hold up, like a smooth-shifting Shimano drivetrain, and a powerful Bosch motor.

Equipped for every adventure Powerfly Equipped has the capability of a trail bike and the versatility of a city bike. This electric mountain bike is made for rugged utility, with durable parts, a suite of adventure-ready accessories, and a reliable Bosch drive system that amplifies your speed and endurance whether you're exploring singletrack or charging past traffic on your morning commute.

Trek's Powerfly is a hardtail e-MTB furnished with quality mechanical and electric components. The result is a bike that exhibits powerful levels of assist and torque, even when climbing steep hills. Riders report being able to go on multiple rides or for two full days of e-biking, on a single battery charge.

The everyday adventure electric mountain bike. Climb to new heights and explore the miles beyond with an e-MTB that supercharges the fun in every ride. Powerfly helps you take on steeper terrain, ride faster, and go farther thanks to the powerful Bosch Performance Line CX motor. Now with advanced smart system technology and a sleek new LED ...

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The Trek Powerfly FS 4 is one of the most popular electric bikes on the market. With its motorized assistance, mid-drive design, and trail-ready components, it could be the perfect bike for your next ride. Since its launch, Trek's Powerfly FS 4 has become a fan favorite among mountain bikers.

Bikes; Mountain; Hardtail; Trek; Powerfly 4 Trek Powerfly 4 - 2022 $3,699.99 - $4,749.99. $4,749.99. Color: Size: Select size. X-Small Medium X-Large Wheel Size: Select wheel size. ... Our most affordable electric mountain bike comes with the same powerful Bosch motor and intuitive controller as our most expensive e-bikes, with a smaller ...

Details. Powerfly 4 is our most affordable electric mountain bike. It's built with parts that hold up, like a smooth-shifting Shimano drivetrain, and a powerful Bosch motor. Plus, it features our user-friendly Removable Integrated Battery (RIB) system that's fully encased in the frame yet doesn't require tools for removal.

The aluminum Trek Powerfly 8 offers 130mm of suspension travel front and rear, with a RockShox Yari fork up front and a RockShox Deluxe RL in the back. An 11spd XT drivetrain, Shimano hydraulic disc brakes, Boost spacing, 2.8″ Bontrager "plus tires," and KS eThirty dropper post are included, giving this bike a pretty legit component ...

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Samara (called Kuibyshev from 1935 until 1991), a province of Russia located on the Volga River, also the name of the capital of the province. To the north it borders on the province of Kazan, in the west on Simbirsk, in the south on Astrachan, and in the east on Ufa, Orenburg, and the Ural Mountains.It consists of 20,000 square miles and had a population of three million at the turn of the ...

Samara Oblast - Overview. Samara Oblast is a federal subject of Russia located in the southeastern part of European Russia, in the middle reaches of the Volga River, part of the Volga Federal District. Samara is the capital city of the region. The population of Samara Oblast is about 3,132,000 (2022), the area - 53,565 sq. km.

Powerfly Full Suspension. Fly over rough terrain, scramble up loose climbs and take on bigger trail adventures with the latest mountain bike technology and the best in electric-assist components.

Neighbors: Orenburg Oblast, Saratov Oblast, Tatarstan and Ulyanovsk Oblast. Categories: oblast of Russia and locality. Location: Volga Region, Russia, Eastern Europe, Europe. View on OpenStreetMap. Latitude of center. 52.6768° or 52° 40' 36" north. Longitude of center. 50.5874° or 50° 35' 15" east. Population.

Powerfly Equipped. Mountain bike capability meets adventure-ready versatility. Powerfly Equipped is ready for anything with a full suite of handy accessories — including a rack, mudguards, lights, and kickstand. Choose one of the latest models with Bosch smart system components (Powerfly FS Gen 3/Powerfly Gen 4) or save some cash on previous ...

Enhance your cycling experience with Trek 2023 Powerfly HT Paint Match Charge Port Covers. Shop now! Enhance your cycling experience with Trek 2023 Powerfly HT Paint Match Charge Port Covers. ... Mountain bikes Hybrid bikes Electric bikes Electra bikes Men's bikes Women's bikes Equipment Apparel Sale & clearance Customize How to buy online Trek ...

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Yesterday was the Moscow premiere of Star Trek into Darkness and in attendance were J.J. Abrams, Chris Pine, Zachary Quinto , and Alice Eve .

It was a rainy day in Moscow, but that didn’t deter the stars or the fans waiting to see them.

Click on thumbnails for larger-sized photos from the event.

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Powerfly 5 is an e-MTB that pairs the boost of a Bosch electric bike system and the sleek looks of a traditional trail bike. The Removable Integrated Battery (RIB) is fully encased in the lightweight aluminum frame but doesn't require tools for removal. This user-friendly electric mountain bike is built in Trek's performance trail heritage with ...
Trek Powerfly 7 LT Review
Trek Powerfly 7 LT Review | ElectricBikeReview.com. A stealthy, long travel, all-mountain electric bike with longer wheel base and adjustable seat stay hardware to optimize geometry for climbing and descending, proprietary "Active Braking Pivot" rear suspension reduces skipping, Knock Block headset and Hartzell Hug impact-absorbing downtube ...
Hydrive Battery Charger
Hydrive Battery Charger. $95.00. Model W585888. Retailer prices may vary depending on location and delivery method. The final price will be shown in your cart. A spare or replacement charger for your Hydrive equipped bike. Compare. Color / Black. Select a color.
Trek 2018 Powerfly Charge Cap
Enhance your cycling experience with Trek e-MTB Bosch Battery Components. Shop now!
Possible battery/charger fault?
Trek powerfly 500wh battery So the last 3 or 4 times I have changed my battery overnight (always inside, battery removed) It hasn't charged fully? Charger has stopped charging. If I remove charger and plug back in it continues to charge again (approximately 30min more this morning) it never...
Trek Powerfly 4 Gen 4
Powerfly 4 is our most affordable electric mountain bike. It's built with parts that hold up, like a smooth-shifting Shimano drivetrain, and a powerful Bosch motor. Plus, it features our user-friendly Removable Integrated Battery (RIB) system that's fully encased in the frame yet doesn't require tools for removal.
Powerfly 4 Gen 3
Powerfly 4 Gen 3. Retailer prices may vary depending on location and delivery method. The final price will be shown in your cart. Powerfly 4 is our most affordable electric mountain bike. It's built with parts that hold up, like a smooth-shifting Shimano drivetrain, and a powerful Bosch motor. Plus, it features our user-friendly Removable ...
Is Trek Powerfly 4 Worth Buying? [Trek Powerfly 4 Review]
The 2022 Trek Powerfly 4 has a powerful Bosch motor with a Shimano drivetrain giving you the ultimate climbing riding experience.
Trek Powerfly 5 won't turn on after charging the battery away from the
I have the exact same problem with my brand new powerfly LT 9.7 The shop where I bought it from is stumped and is contacting Trek for me,but in the interim I have discovered that TURNING ON THE BATTERY after charging it away from the bike via the"hidden" power switch will do the trick.
Powerfly 4 Gen 3
Powerfly 4 Gen 3. 78 Reviews / Write a Review. Model 1042637. Retailer prices may vary depending on location and delivery method. The final price will be shown in your cart. Powerfly 4 is our most affordable electric mountain bike. It's built with parts that hold up, like a smooth-shifting Shimano drivetrain, and a powerful Bosch motor.
Trek Powerfly FS 4 Gen 3
Powerfly FS 4 is a full suspension electric mountain bike built to tackle rugged trail adventures. The plush suspension setup soaks up rough terrain, and the powerful Bosch electric drive system...
trek powerfly electric mountain bike
The Trek Powerfly electric mountain bike models have been completely redesigned and updated for 2019, and EBR was invited to attend a launch event at Mammoth Mountain resort in Ca
I lost the keys to my bikes battery and I need a new one ...
I have a Townie Electra by Trek that I purchased without a key or a battery. Trying to put it back to an e-bike and wondering if I can get a key made from the number off of the cylinder.
Powerfly Family
Powerfly FS Gen 2 and Powerfly Gen 3 pack in all the power and features you need for adventurous rides and exploration, but skip Bosch's smart system and LED remote for a simple, app-free ride with Bosch's proven, previous-generation components. You get the same stable and confident geometry as the latest generation Powerfly, and a little more ...
Skinhead Revolt Zine: Moscow Trojan Skins interview
1.could you introduce yourself and tell us what is the Moscow Trojan Skinhead Crew??? 2.Are you an antifascist skinheads crew? If so is not better to be a apolitical skinhead and don't be in trouble with nazi skinheads?
Powerfly FS 9 Equipped
Powerfly FS 9 EQ is a full suspension electric mountain bike that's built for singletrack sessions and rugged commutes. You get high-end parts, a powerful drive system, and a rad suspension setup for tackling rougher trails. And, it comes with utility-focused features for daily riding, like fenders, lights, and a rear rack.
Star Trek Into Darkness Moscow Premiere
Yesterday was the Moscow premiere of Star Trek into Darkness and in attendance were J.J. Abrams, Chris Pine, Zachary Quinto, and Alice Eve.

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Trek Powerfly 4

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Possible battery/charger fault?

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Trek Powerfly 4 Gen 4

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Is Trek Powerfly 4 Worth Buying? [Trek Powerfly 4 Review]

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Trek Powerfly 4 General Riding

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Bontrager XR3 Tires

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Trek Powerfly 5 won't turn on after charging the battery away from the bike

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Trek Powerfly FS 4 Gen 3 - 2023

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