trek powerfly 7 usata

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…

User Ratings

Your rating, best electric bikes.

Bike Comparison

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David Harrison

Table of contents, trek powerfly 7 equipped review (2023).

Trek’s Powerfly range is the company’s answer to a sporty commuter, which is designed to bridge the gap from the urban environment to the trails. The range of hardtail e-MTBs were brought out to be versatile, capable of holding their own on their dirt, but also capable for the daily routine of life or a companion on long distance tours.

The range comes in many different guises, from the super sporty FS versions, which come naked at the rear, or the Equipped versions, which have racks over the back wheel to take panniers or bags. The Powerfly 7 Equipped is the second highest spec bike in the Equipped series.

So, has Trek been able to really master multiple terrains and purposes at once? Or is it a case of this bike being a Jack of all trades, and master of none? Let’s find out…

Our Verdict

Congratulations to the crew at Trek – the company has created a belting bike here.

It’s very hard to straddle the worlds of commuter, trail and tourer – and the folk at Trek have managed it here.

The bike features excellent component pairing, with a top end Bosch battery and motor, a seriously robust frame and durable wheel components – it’s made for lots and lots… and lots of riding.

It isn’t a gnarly single-track shredder, and it doesn’t pretend to be, but it gets the elements it needs to get right absolutely spot on.

Potentially, the suspension deserves an upgrade given the price, but apart from that we’re pretty stoked with this one.

• Comfortable ride
• Commutable & tour riding friendly

Trek Powerfly 7 Equipped

Price: $6,266

Weight/frame.

The Powerfly 7 Equipped comes with an Alpha Platinum compound aluminium frame.

The bike is made to be robust and is fitted with a pannier/bag cage over the back wheel, so it’s usable on the daily commute or on touring style rides.

It’s a solid bike and you feel very stable up top, exactly what you need from a bike which might have to balance extra weight on the back from luggage.

That comes at a cost, though, the overall weight of the bike comes in at 25.12kg (in a size medium), so it is a bit of a beast to contend with.

The bike comes in 5 frame sizes – extra small , small , medium , large and extra large – with the weight varying slightly between them.

You feel that extra weight out on the trickier trails, it doesn’t manipulate well and feels very cumbersome, but really – the bike isn’t made for technical trails or on seriously sharp up and down terrain.

It’s made to be a loyal partner on longer, flatter, distances and it certainly holds its own on the gravel or on a dirt road with a few lumps.

The Powerfly 7 Equipped comes with a chunky 625Wh Bosch PowerTube battery . The bike is made to take on some longer distance riding and the Bosch battery offers the capabilities to keep pushing on longer and longer.

Given the bike isn’t made for super technical and steep trail-based inclines, that battery actually stretches a long old way and it’s ultra reliable. On the flatter style of terrain you’re likely to be tackling, the battery gives you hours and hours of fun.

How Long Does a Trek Powerfly Battery Last?

We found on our review rides that we got well over 100km on one charge, with juice still to go on with. It’s secured tightly into the downtube and is easily removable with a simple click system.

The PowerTube takes around five hours to fully charge from dead and only two hours to get to 50%, which means you can get back out on the road/trail at pace. A fitting battery for this burly bike.

The Powerfly 7 Equipped comes with a seriously powerful Bosch Performance CX motor , which can punch out up to 85Nm of torque. We’re very impressed with this pairing yet again from Trek.

That extra kick takes the edge off the bike’s overall weight and means you don’t have any anxiety when approaching a large hill. The power is delivered in a super-natural way and it doesn’t give off any unusual drag or overshoot.

It also works very intelligently with the battery to release the power conservatively. Overall, it’s a stunning partnership for a bike, which could feel very sluggish – however, the electrical components are well matched to the bike’s needs.

Motor Display

The Powerfly 7 Equipped is fitted with a Bosch Kiox display – another excellent choice from Trek. The Kiox is a best friend while out riding, offering your battery percentage as an exact percentage – praise the Lord!

It’s exactly what we want and now expect from a motor display, but it doesn’t always happen. The Kiox offers much more than that, though. It also offers calorie consumption data, pedalling cadence, speed, distance to your destination, among many other features. You can also link it up to a heart rate monitor via Bluetooth to keep on top of your performance.

We found it a beautiful display to accompany us on our review rides and it elevated the overall ride experience.

The Trek Powerfly 7 Equipped is a hardtail e-MTB, so only comes fitted with front suspension. It’s one of the reasons the bike is so good on the longer distance rides and on urban streets – you don’t suffer from any unnecessary bounce or sponginess from the back end.

At the front end the bike comes with SR Suntour Zeron 35, air-sprung, front forks , which have 120mm of travel . Listen, the forks are a bit uninspiring if we’re honest, but you haven’t bought this bike to launch of jumps and take on huge downhill routes.

The bike has enough give to cope with the demands of a touring cycle and on your daily commute.

ℹ️ Another moment to be very aware of what you’re looking at here. This isn’t an all gnarly trail rider, so steer clear if that’s what you want.

Wheels/Tyres

The Trek Powerfly 7 Equipped is fitted with different wheel sizes, depending on the size of frame you go for. For the extra small and small versions you’ll get a 27.5in wheel setup, but a larger 29in setup on the medium , large and extra large frame sizes.

The bike comes with Bontrager Line Comp 30 wheels and Bontrager LT4 Expert tyres . Both are a really decent accompaniment for the type of strains the bike is put under. The wheels are super durable and ultra strong – capable of taking the extra weight of luggage and long distance use.

The tyres offer enough bite on the dirt, but also shed very well on hard packed and on concrete – useful so that you aren’t carting extra drag around for hours on end.

The Powerfly 7 Equipped comes with a 4-piston, hydraulic disc brake setup , with M6100 levers and M6120 callipers . They offer enough bite to bring you to a halt when needed. They aren’t all singing, all dancing, but you don’t need them to be.

The Powerfly 7 Equipped comes with a 12-speed SLX M7100 group set . They offer smooth shifting and an ease of use, which you need when spending hours up top on the pedals. The pairing does everything you need them to.

A decent price point for the Trek Powerfly 7 Equipped. We’re impressed with the ability to include those high spec Bosch components for the price and there aren’t many points to grumble about throughout the whole bike. Bravo to the Trek team.

Trek Powerfly 7 Equipped Facts & Figures

Size configurations.

* All measurements provided in cm unless otherwise stated.

* Please note – spec applies to all sizes unless listed separately

How Does it Compare?

A good range of bikes to compare the Powerfly 7 Equipped to is the Canyon Grand Canyon:ON series.

The Grand Canyon:ON bikes are made for the same purpose – with the aim of being versatile rides, capable of switching from road to dirt and useful for commuters, along with being comfortable over longer distances.

We’ve recently reviewed the Grand Canyon:ON 8, so will shine the spotlight on this bike in our comparison.

Firstly, the Powerfly 7 Equipped is more than $2,500 more expensive, but is it worth the extra money?

The Grand Canyon:ON 8 is lighter by 3kg, but it is far more poorly kitted out in the electronics department. The Shimano components, despite offering the same sort of power and battery life, are far inferior.

The Shimano Steps EP8 on the Canyon doesn’t touch the Bosch Performance CX motor on our Trek. And the user experience is far poorer, too. The display on the Canyon is disappointing and our Kiox 300 is magnificent.

You also can’t just clip out your battery on your Canyon, it has to be unscrewed, which is a pain in the backside. The Canyon shades it with a RockShox suspension, with the same 120mm of travel.

The wheels, brakes and drivetrain on both are solid and do the job needed. Overall, it’s a tough call, but we found the overall user experience far more enjoyable on the Trek, compared to the Canyon.

You may pay more, but we think you’re getting a much better rounded package.

Final Thoughts

We think Trek has done beautifully here. We’ve thoroughly enjoyed riding the Powerfly 7 Equipped in our review rides. It’s a versatile e-MTB, which can take on many different types of terrain and do so with a flourish.

Be it commuting in the city, heading out on a long touring cycle or a quick rip through some forest roads and minor trails – the bike handles it well. They’ve selected their component partnerships excellently and the bike rides a dream.

Our only qualm would be the suspension – for the price you’re paying, we think Trek could have pushed the boat out more. It isn’t cheap for this sort of bike, but you won’t be let down.

At least that’s our view, now go out and find out for yourselves.

If you enjoyed this review then make sure to check out our other Trek reviews.

Trek Powerfly FS 9 Equipped Gen 2 Review (2023)

Trek Fuel EXe 9.9 XX1 AXS Review (2023)

Trek Rail 9.9 XTR Gen 3 Review (2023)

Trek Rail 9.9 XX1 AXS Gen 3 Review (2023)

+1 (918) 393 4169, [email protected].

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Trek Powerfly 7 FS Plus Review

• E-Bike Controls - 10% 7.0
• Downhill Performance - 35% 5.0
• Climbing Performance - 20% 7.0
• Power Output - 15% 8.0
• Distance Range - 20% 8.0

Our Verdict

Our analysis and test results.

Trek is one of the biggest brands in cycling, so it's no surprise that they have joined the manufacturers selling electric mountain bikes in North America. Over the years we've grown to expect quality from Trek that typically comes at a premium price, and the Powerfly 7 FS is an example of that. At a retail price of $5,200, this bike costs roughly the same as the other bikes in this review, give or take a few hundred dollars, but it has a build that is completely out-classed by the competition. Trek's frame design is great with a nicely integrated battery and drive unit that provides strong power output and solid distance range, but this bike's lower end components, most notably the suspension and brakes, are a serious detriment to its otherwise relatively good performance. Read on to find out how the Powerfly 7 FS compared to the competition.

Performance Comparison

E-Bike Controls

Trek has chosen Bosch for their e-bike batteries, drive units, and controls. The Bosch Purion control unit on the Powerfly 7 FS features a digital display and shifter buttons that are a single unit located on the handlebar by the left grip, similar to that found on the Bulls bike. The digital display is large and easy to read; it shows your current speed, power output setting, and remaining battery life. Its location on the left side of the handlebar made it slightly less convenient to view than the display on the Ghost Hybride SL AMR, but at lower speeds, it was still easy to view at a glance.

The shifter buttons are located on the left side of the display with large up and down buttons that shift through the Bosch drive unit's four support settings, Eco, Tour, e-MTB, and Turbo. The buttons are large and intuitive to use, but testers didn't love the ergonomics of the system and felt it was somewhat less user-friendly than the shifting found on the Bulls E-Stream, and the Specialized Turbo Levo. The buttons were large, but you had to be sure to press them directly in the center and get a positive click to be sure the drive unit would shift.

Our testers did like the charging interface on the battery unit of the Powerfly. The charging port was well protected, and the connection with the plug felt very secure. The battery charged in a similar amount of time as the competition, about 3 hours.

Downhill Performance

It would be unfair to say that the Powerfly 7 FS wasn't fun to ride downhill because it was still a blast, it just couldn't compete with the impressive downhill capabilities of the competition. There are a few reasons why, and we'll start with the bike's geometry. First, it has 130mm of front and rear wheel travel, making it more of a mid-travel bike than the other e-MTB's in our test selection. Next, it has the steepest head tube angle, at 67.3 degrees, of all the bikes we tested, which made it feel a bit less confident in steeper and rockier terrain. The size medium Trek we tested also had the longest reach, at 458mm, and the longest wheelbase, at 1226mm, of all the models in our test. This length did give it a stable and planted feeling at speed on smoother sections of trail, but it also made the bike feel sluggish and unwieldy in technical sections, tighter turns, and lower speeds.

The component specification of the Powerfly 7 FS is probably the most significant detriment to its downhill performance. The Rock Shox Recon RL Solo Air fork, in particular, is not well suited to the front end of this heavyweight electric mountain bike. The Recon fork has inconsistent, sticky feeling travel and noticeable flex when riding downhill, it just doesn't feel stout enough for the weight of the bike. Recon forks are one of Rock Shox's budget models, and they only work okay on bikes that weigh half as much as the Powerfly 7 FS to begin with. The front suspension left a lot to be desired and did not inspire any confidence while descending.

The Shimano Deore M6000 brakes also didn't really cut the mustard as they felt way under-powered for a bike of this weight. A 51 pound 12-ounce bike carries some serious speed down the hill; you definitely want all the stopping power you can get to slow it down. Trek also spec'd a pair of Schwalbe Knobby Nic 27.5 x 2.8" tubeless tires on the Powerfly, and while they are nice and knobby with plenty of air volume, a bike of this nature benefits from a much more aggressive tread. The Knobby Nics provided great traction while climbing, but on the descent, they did not provide the traction or inspire the confidence our testers were looking for, especially as a front tire.

Climbing Performance

The Powerfly 7 FS was generally a competent and comfortable bike on the uphills. The bike's long wheelbase and very long chainstays, 475mm, give it a long rear end that maintained impressive traction with the rider seated. As a matter of fact, it seemed this thing could scramble up just about anything you point it up assuming you maintained your momentum. Tighter turns and technical sections of uphill felt a little sluggish on this bike, however, due to its overall length.

The power output of the Bosch drive unit was quite strong and relatively consistent, although it didn't have the most predictable initiation. Testers also noticed the power seemed to drop out for a very brief moment when shifting the rear derailleur. In general, though, the power delivery felt pretty smooth assuming you kept your pedaling cadence up.

Testers weren't wild about the drivetrain spec'd on the Powerfly 7 FS either. It wasn't the 11-speed Shimano XT rear derailleur, that has a massive range and worked flawlessly, but the 15 tooth front chainring seemed odd. We aren't entirely sure why such a small front ring would be spec'd on this bike, as the pedal assistance from the motor already gives you all the help you need. Additionally, the front chainring is hidden behind a guard on the side of the drive motor and more challenging to clean.

Power Output

The power output of the Bosch Performance CX 250 drive unit was relatively good. The power comes on strong and suddenly, although the initiation wasn't as predictable as some of the competition. You could definitely feel the torque of the motor, and popping wheelies was definitely a possibility. Like the other e-MTB's in our test, the top speed of the pedal assist motor is 20 mph, and the Powerfly 7 has no problem getting up to and holding that speed. Testers found that the power lagged momentarily between shifts of the rear derailleur, but it didn't really last long enough to disrupt your momentum or negatively impact your riding experience. The four support settings offer a good range for a variety of trail types, riding styles, and preferences, and shifting between them was generally smooth, and intuitive using the handlebar mounted shifter. It was also easy to see which support setting you're using by looking at the digital display/shifter unit on the handlebar by the left grip.

The Powerfly 7 FS impressed us the most with its distance range when compared to the bikes with comparable battery storage. It may not have the best on trail performance, but in our distance range testing, we found that it uses its power quite efficiently. We were able to ride the Powerfly 7 in its highest support setting from a fully charged battery to completely depleted over a distance of 18.6 miles and 3,076 vertical feet of climbing on trail. This range was 2 miles less than the Specialized Turbo Levo FSR Comp 6Fattie. Of course, the Trek, and the other bikes in our test selection can travel farther if using a lower support setting that burns less battery power and more calories instead.

The Bulls E-Stream EVO AM 4 has a 650Wh battery, so it didn't surprise us in the least that it was able to travel much farther than the models in the test with less battery storage.

As mentioned several times above, the component specification of the Powerfly 7 FS is one of the primary factors holding back its on-trail performance. Some elements of the build are great, but our testers weren't incredibly impressed considering the $5,200 price tag. The primary point of contention is the spec of a Rock Shox Recon Solo Air fork, a low-end fork on a higher end and hefty electric mountain bike. The Recon fork is typically spec'd on non-e-bikes that retail for around $2,000 and weigh around 30 pounds, and even then the performance of the fork is lackluster at best. Sure it works, but it has a sticky feeling and inconsistent stroke, limited tune-ability, and a bit of a "pogo-stick" feel to it. Testers complained that it felt flexy and simply not stout enough to be the front suspension of a bike that weighs 51 pounds and 12 ounces. It didn't inspire confidence at all, and virtually any other fork with a little more heft to it would be preferred over the Recon. The Rock Shox Deluxe RL rear shock handled its duties admirably, it performed well on bigger hits but didn't really shine through the rough chop.

For the drivetrain, Trek spec'd an 11 speed Shimano XT derailleur with an 11-46 tooth cassette. We can't complain about the performance of Shimano XT components because they work reliably and competently. Testers weren't enthusiastic about the 15 tooth front chainring, however, and questioned the use of such a small ring in the front considering the pedal assist drive unit and 11-speed cassette in the back that already offers a ton of range. This 15 tooth front ring was also hidden behind a guard that made it more difficult to clean. Overall, the drivetrain worked, but we feel that it could benefit from a different system, possibly an e-bike specific drivetrain that is optimized to work with a pedal assist motor.

The Powerfully 7 FS rolls on Bontrager hubs laced to nice wide SUNRingle DUROC 40 SL rims that pair well with the 27.5 x 2.8" Schwalbe Knobby Nic tires. In general, we feel the Knobby Nic is a good tire, and they provided excellent traction while climbing, but testers felt the rounder profile lacked the traction they wanted while descending. The more aggressive tread patterns of the tires found on the other models in our test selection provided more traction and confidence on the descents.

The cockpit of the Powerfly 7 FS consists of a 750mm wide Bontrager handlebar and a 60mm Bontrager stem. The handlebar was a reasonable width, but testers didn't love the longer stem as this bike is already very long, with the longest reach and wheelbase in the test, and could benefit from a shorter and stouter stem. The Bontrager dropper post worked well throughout our testing and featured an ergonomic 1x remote lever.

Slowing and stopping this heavyweight electric mountain bike is left to a set of Shimano Deore M6000 hydraulic disc brakes. While we can't typically complain about the consistency and reliability of Shimano's brakes, the additional weight of an e-bike really demands something a little more powerful. Overall, the build of the Powerfully 7 FS gets the job done, but this bike could seriously benefit from a beefier fork, more powerful brakes, and some more aggressive tires.

Best Applications

If you're a rider looking for an e-MTB who is less concerned with getting rowdy than you are with how long your battery charge will last, then the Powerfly 7 FS could be a good option for you. It lacks the confident downhill performance of other bikes in this test like the Bulls E-Stream EVO, or our Editors' Choice Award winner, the Specialized Turbo Levo Comp, but it does boast a good distance range. This could also be a good multi-purpose e-bike, for a rider who may use it for commuting or zipping around town, and who also wants to get out on the trail from time to time and isn't looking to push it too hard.

With a retail price of $5,200, the Powerfly 7 FS costs almost $400 more than our Best Buy Award winner, the Giant Trance E+ 2 Pro. With the lackluster build and less confidence inspiring performance of the Powerfly on the trail, we don't think it is as good a value as other electric mountain bikes in this review. For serious use on the trail, we'd be inclined to spend our money elsewhere.

There's no doubt that the Trek Powerfly 7 FS is fun to ride. Comparatively speaking; however, it couldn't match the all-around performance offered by other models in our test selection. Most notably, the Trek's mediocre downhill performance is largely due to the bike's poor component specification that just isn't robust enough to be competitive. That said, this could be a great electric mountain bike if the build is improved, so if/when Trek makes a version with a more impressive component spec it will be worth a second look.

Other Versions and Accessories

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• Technical Details

Trek Powerfly 7 Review

• Price: 4999 €
• Frame Material: Aluminium
• Motor: Bosch Performance Line CX
• Travel Front: 120 mm
• Battery: 625 WH
• Model Year: 2022
• Wheel Size: 29"
• Weight: 22,3 kg

At a glance

The most importanten ratings of the Powerfly 7 ⬤ in comparison to the competitor bikes of following categorie: (5000) ⬤ .

Value for money

If you are keen on value for money, this is your chart. It shows you at a glance how much bike you get for 4999 €.

Expirience with the Trek Powerfly 7

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Trek powerfly 7 vs cannondale trail neo 2.

Je steiler der Winkel des Sitzrohrs ist, desto effizienter können Sie in die Pedale treten.

• Motor Bosch Performance Line CX
• Display Kiox 360
• Battery 625
• Frame Alpha Platinum Aluminum
• Frame Material Aluminium
• Fork Size: XS, RockShox 35 Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 44 mm offset, oversized crown for eMTB, Boost110, 15 mm Maxle Stealth, 80 mm travel, Size: S, M, L, XL, RockShox 35 Gold RL, DebonAir spring, Motion Control d
• Spring Unit air
• Remote-Lockout yes
• Gearrange 510%
• Drivetrain 12
• Gear Lever Shimano SLX M7100, 12-speed
• Rear Derailleur Shimano XT M8100, long cage
• Crank E*thirteen E*spec Plus, 34T, 165 mm length
• Cassette Shimano SLX M7100, 10-51, 12-speed
• Chain Shimano SLX M7100, 12-speed
• Brake Set Shimano 4-piston hydraulic disc, M6100 lever, M6120 calliper
• Brake Rotors 203/180
• Rims Bontrager Line Comp 30, Tubeless Ready, 28-hole, Presta valve
• Front Hub Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle
• Rear Hub Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, Shimano MicroSpline freehub, Boost148, 12 mm thru axle
• Tires Front Size: XS, S, Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 27.5x2.35, Size: M, L, XL, Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 29x2.40"
• Tires Rear Size: XS, S, Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 27.5x2.35, Size: M, L, XL, Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 29x2.40"
• Saddle Bontrager Commuter Comp
• Seat Post Size: XS, S, TranzX JD-YSP18, 100 mm travel, internal routing, 31.6 mm, 361 mm length, Size: M, L, XL, TranzX JD-YSP18, 130mm travel, internal routing, 31.6 mm, 425 mm length
• Stem Size: XS, Bontrager Rhythm Comp, 31.8 mm, Knock Block, 0-degree, 50 mm length, Size: S, M, Bontrager Rhythm Comp, 31.8mm, Knock Block, 0-degree, 60 mm length, Size: L, XL, Bontrager Rhythm Comp, 31.8 mm, Knock Block, 0-degree, 70 mm length
• Handle Bar Size: XS, S, Bontrager alloy, 31.8 mm, 15 mm rise, 720 mm width, Size: M, L, XL, Bontrager alloy, 31.8 mm, 15 mm rise, 750 mm width
• Handle Bar Width 750

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Trek Powerfly 7 LT Review

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• Trek Reviews
• All Mountain Electric Mountain Bike Reviews
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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

Introduction

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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A versatile electric bike that's efficient on road but capable of light trail riding as well, puncture resistant tires with tight knobby tread offer traction, stability, and a bit of comfort due to increased air volume. Durable spring suspension fork provides 63mm of travel with preload and lockout adjust, hydraulic disc…...

Trek Super Commuter+ 7 Review

• MODEL YEAR: 2018

A stealthy looking, sturdily built, feature-rich urban electric bicycle complete with tubular alloy fenders, premium integrated lights from Supernova, and powerful hydraulic disc brakes. Upgraded Shimano Deore 10-speed drivetrain with one-way clutch to reduce chain bounce, sleek proprietary derailleur…...

Trek Verve+ Review

• MSRP: $2,299

A versatile city electric bike with sturdy paint-matched aluminum fenders, a bright and aimable headlight as well as a flashing backlight (both are powered by the main battery), and mounting points for a bottle cage and rear rack. Surprisingly comfortable, the wider tires provide cushion and stability, the saddle and suspension seat post…...

Trek Lift+ Lowstep Review

• MSRP: $2,799
• MODEL YEAR: 2017
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A comfortable, low-step, cruiser style electric bike with balanced motor and battery position, multiple fun color choices, and several sizes (also available in high-step). Nicer 10-speed drivetrain with clutch for reducing chain bounce and slap, easy to pull hydraulic…...

Trek CrossRip+ Review

• MSRP: $4,499

A lightweight, high speed, electric road bike with sturdy 12 mm thru-axle on the front wheel, Carbon fiber fork, and Alpha 200 Gold alloy frame to dampen vibration. Capable and comfortable on hard packed trails as a gravel grinder, sturdy Aluminum fenders and…...

2017 Trek Dual Sport+ Review

A lightweight, trail-capable, hybrid commuter electric bike, the larger 700c wheelset provides efficient rolling momentum and lower attack angle to smooth out cracks and bumps. Shimano STePs mid-drive is responsive, less power hungry than competing products, and relatively quiet, The…...

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A sporty hybrid electric bike offering a blend of efficiency and trail capability, suspension fork with lockout, hydraulic disc brakes. Removable battery and display panel reduce weight when lifting and transporting the bike, quick release…...

Trek Super Commuter+ 8S Review

• MSRP: $4,999

A streamlined, feature-complete, commuter style electric bike with Class 3 high-speed operation (up to 28 mph), available through a wide network of dealers. 11-speed Shimano SLX drivetrain offers plenty of range for comfortable pedaling at low and high…...

Trek Powerfly 8 FS Plus Review

A full suspension trail bike from one of the "big three" brands in the US, it offers 130 mm travel with custom tuning for the added weight and power of the bike, excellent weight distribution. Quick-release wheels, removable battery, and removable display make the bike flexible and easy to transport…...

Trek XM700+ Review

• MSRP: $3,499
• MODEL YEAR: 2016, 2017, 2018

A sleek, light weight, speed pedelec capable of reaching ~28 mph, built around the Bosch Performance Speed drive system and a Shimano SLX 10 speed drivetrain. Integrated plastic fenders and chain guard keep you clean and are reinforced to reduce rattle…...

Trek Conduit+ Review

• MODEL YEAR: 2016

A light weight, high-step only electric bike with premium fenders, pannier rack and integrated LED lights that would be perfect for commuting or short range touring. Delivers Shimano hydraulic disc brakes, a 10 speed drivetrain with Shimano Deore derailleur and quality…...

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A light weight, efficient and more upright city style electric bike with a two year warranty, features an adjustable stem and is available in both high-step and step-thru frame styles in four sizes for improved fit. Leverages the Shimano STePs drive system keeping weight low and centered across the frame, the…...

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• MSRP: $2,679
• MODEL YEAR: 2010, 2011

An efficient road-style electric bike with narrow slick tires and carbon fiber fork available in five frame sizes. Integrated LED lights run off the main battery pack, lots of additional mounting points for…...

2011 Trek Transport+ Review

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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 .

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The 2021 Trek Powerfly FS 7 on test – Is this the all-round eMTB of tomorrow?

Trek have completely redesigned the Powerfly FS, overhauling the concept to target a much wider audience, from trekking and leisure riders, to moderate trail adventurers. We tested the 120/100 mm travel eMTB with the Bosch Performance Line CX motor to find out whether the new Trek Powerfly FS 7 is the all-rounder that many have been looking for.

There’s no doubt that if we won the lottery, we would own more than one bike: one for long rides, one for flowing single track, one for fast commutes… But since none of us have a goose that lays golden eggs, we have to think carefully about which bike to invest in. Trek aim to solve this problem with the new Powerfly FS 7. We put the American eMTB through its paces in the Alps of South Tyrol to find out what it’s capable of. Can the 120 mm front and 100 mm rear travel eMTB with 29″ wheels and its Bosch Performance Line CX motor be the one bike for (almost) everyone?

The Trek Powerfly FS 7 in detail

The Powerfly FS has a distinct look and the unique design with the shock positioned behind the seat tube, together with the low-slung top tube, immediately catch your eye. A fender protects the rear shock from being bombarded by dirt from the rear wheel. The 85 Nm Bosch Performance Line CX motor and the 625 Wh battery are neatly integrated into the frame while the battery is easy to remove from the side of the down tube, even featuring a convenient carrying handle. Mounted in front of the stem, the Bosch Kiox display is easy to read but its navigation function is rudimentary at best. Unfortunately, Trek don’t offer any builds featuring Bosch’s new Nyon display with its extensive navigation functions. It’s a shame, the Nyon would look great on the bike! However, a model with the Bosch SmartphoneHub is available.

The components of the Trek Powerfly FS 7

In general, the componentry is good, consisting of a Shimano SLX/XT drivetrain, Shimano SLX brakes, 120 mm TransX dropper post and RockShox SIDLuxe Select+ shock. However, the 120 mm travel RockShox 35 Gold RL fork could be better. It does a good job of absorbing large impacts but a more sensitive fork would significantly increase comfort and traction at the front. The tires, handlebars, stem and wheels are supplied in-house. For frame size XS and S, Trek rely on 27.5″ wheels whereas sizes M, L and X roll on 29″ wheels. This should allow for consistent handling across all frame sizes. The Powerfly 7 is available for a reasonable € 5,360 and is approved for a maximum permissible weight of 136 kg. If you want to use the Powerfly FS for commuting and running errands, Trek have made the bike compatible with all the accessories you might need, including mudguards, a stand, luggage racks and lights. Alternatively, the € 6,335 Trek Powerfly FS 9 comes equipped with all of this as standard, including the Bosch SmartphoneHub.

Trek Powerfly FS 7

Specifications.

Motor Bosch Performance Line CX 85 Nm Battery Bosch PowerTube 625 Wh Display Bosch Kiox Fork RockShox 35 Gold RL 120 mm Rear Shock RockShox SIDLuxe Select+ 100 mm Seatpost TranzX Dropper 120 mm Brakes Shimano M6120 203/180 mm Drivetrain Shimano SLX/ XT 1x12 Stem Bontrager alloy 60 mm Handlebar Bontrager alloy 760 mm Wheelset Bontrager Line Comp 30 27.5" - 29" Tires Bontrager XR4 Team Issue 2.4"

Technical Data

Size XS S M L XL Weight 24.88 kg Perm. total weight 136 kg Max. payload (rider/equipment) 111 kg Trailer approval n/a Kickstand mount yes

Specific Features

mini rear fender

The Geometry of the Trek Powerfly FS

Almost like you’re flying

How does such a versatile bike ride? The first thing you’ll notice when you climb aboard is the very low top tube and the freedom of movement that it provides. The riding position is compact and upright, which is great for long, leisurely rides and sightseeing. Your weight is evenly distributed between your hands and seat, contributing to the bikes overall comfort. An added bonus is the dropper seat post which makes getting on and off even easier.

With its predictable handling, wide handlebars, reliable brakes and high-volume tires, the bike instils you with confidence. The response of the RockShox 35 Gold fork is mediocre. A better fork could significantly increase comfort and, above all, traction. The rear suspension does a good job of managing its 100 mm travel as it doesn’t bottom out harshly and only releases as much travel as is absolutely necessary. The rider always stays informed about what’s happening on the trail beneath them without it being unpleasant. With an active riding style, the bike offers a lot of support and also responds to quick direction changes with immediate precision. The Trek Powerfly FS 7 is a nimble and intuitive ebike, allowing both beginners and experts to get their money’s worth. The Powerfly is a versatile eMTB that is equally suited to relaxed cruising, sightseeing and enjoying the outdoors as it is to more action-packed rides in moderate terrain. It’s an excellent companion for classic trekking riders who want to explore new terrain and aren’t afraid of tackling easy trails. Experienced riders will also get their money’s worth for demanding riding but you’ll have to know what you’re doing. The Powerfly FS 7 only reaches its limits on alpine trails and rough tracks.

Conclusionn

With its smart concept, the Trek Powerfly FS 7 is sure to meet the needs of many trekking riders. With its upright and comfortable riding position, efficient suspension and intuitive handling, it performs well on moderate off-road terrain as well as long gravel and forest path rides. If you’re looking for a trekking bike that rides like a sofa, this isn’t it, but if you’re looking for the trekking ebike of tomorrow, you’ll love the Powerfly.

• all-round capabilities
• overall concept
• good-natured and intuitive handling
• confidence-inspiring
• comfortable riding position and low top tube

• responsiveness of the fork is mediocre
• no model featuring the Nyon display

More info at trekbikes.com

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Words: Susanne Feddersen Photos: Jonas Müssig

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About the author.

Susanne Feddersen

With her background as a copywriter and conceptual designer at renowned advertising agencies, head of the Stuttgart copywriting school and former product marketing manager at Ferrero, it’s clear that Susanne’s passion is for writing copy, conceptual design and communication. Susanne also loves organisation and planning. No matter the hustle and bustle she's got her eye on the ball, primarily supporting our management team in implementing numerous projects and coordinating marketing campaigns. Susanne is a long-time mountain biker and, along with her entire family, has recently caught the ebike bug!

2019 Trek Powerfly 7 FS Plus E-Bike (discontinued)

• Write Review

Specifications

Sizes and geometry.

www.trekbikes.com ​

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Victor Mukhin

• Scientific Program

Title : Active carbons as nanoporous materials for solving of environmental problems

However, up to now, the main carriers of catalytic additives have been mineral sorbents: silica gels, alumogels. This is obviously due to the fact that they consist of pure homogeneous components SiO2 and Al2O3, respectively. It is generally known that impurities, especially the ash elements, are catalytic poisons that reduce the effectiveness of the catalyst. Therefore, carbon sorbents with 5-15% by weight of ash elements in their composition are not used in the above mentioned technologies. However, in such an important field as a gas-mask technique, carbon sorbents (active carbons) are carriers of catalytic additives, providing effective protection of a person against any types of potent poisonous substances (PPS). In ESPE “JSC "Neorganika" there has been developed the technology of unique ashless spherical carbon carrier-catalysts by the method of liquid forming of furfural copolymers with subsequent gas-vapor activation, brand PAC. Active carbons PAC have 100% qualitative characteristics of the three main properties of carbon sorbents: strength - 100%, the proportion of sorbing pores in the pore space – 100%, purity - 100% (ash content is close to zero). A particularly outstanding feature of active PAC carbons is their uniquely high mechanical compressive strength of 740 ± 40 MPa, which is 3-7 times larger than that of  such materials as granite, quartzite, electric coal, and is comparable to the value for cast iron - 400-1000 MPa. This allows the PAC to operate under severe conditions in moving and fluidized beds.  Obviously, it is time to actively develop catalysts based on PAC sorbents for oil refining, petrochemicals, gas processing and various technologies of organic synthesis.

Victor M. Mukhin was born in 1946 in the town of Orsk, Russia. In 1970 he graduated the Technological Institute in Leningrad. Victor M. Mukhin was directed to work to the scientific-industrial organization "Neorganika" (Elektrostal, Moscow region) where he is working during 47 years, at present as the head of the laboratory of carbon sorbents.     Victor M. Mukhin defended a Ph. D. thesis and a doctoral thesis at the Mendeleev University of Chemical Technology of Russia (in 1979 and 1997 accordingly). Professor of Mendeleev University of Chemical Technology of Russia. Scientific interests: production, investigation and application of active carbons, technological and ecological carbon-adsorptive processes, environmental protection, production of ecologically clean food.   

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Trek Powerfly+ 7

• AUS $ NZD $ USD $ CAD $ GBP £ EUR €

Size / 15.5, 17.5, 19, 21"

At a glance

Where to buy.

Specifications

• Frame Alpha Gold Aluminium, semi-integrated head tube, shaped & formed tubing, independent seatstays, Balanced Geometry
• Wheels Shimano M4050 hubs, Bontrager XR850 rims
• Wheel Size 29"
• Tires Bontrager XR3 Expert, aramid bead, 29x2.30"
• Crank RIDE+ aluminum 15T w/chainguard
• Rear Derailleur Shimano Deore XT, Shadow Plus
• Shifters Shimano Deore XT M8000, 11 speed
• Brakeset Shimano Deore M615 hydraulic disc
• Handlebar Bontrager alloy, 31.8mm, 15mm rise
• Saddle Bontrager Evoke 2, chromoly rails
• Seatpost Bontrager SSR, 2-bolt head, 31.6mm, 12mm offset
• Stem Bontrager Elite, 31.8mm, 7 degree, Blendr compatible
• Headset 1-1/8" threadless, semi-integrated, semi-cartridge bearings

Q: What size wheels does the 2016 Trek Powerfly+ 7 have?

The 2016 Trek Powerfly+ 7 has 29" wheels.

Q: What size 2016 Trek Powerfly+ 7 should I get?

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