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.
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, and a suspension fork with lockout. Plus, Smart Wheel Sizing means riders of every size get a great fit—29˝ wheels on larger frames, 27.5˝ wheels on smaller frames.
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.
- 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
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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.
Bosch Performance Line CX sets the standard for eMTB performance with up to 85Nm of torque and an intelligent eMTB mode with Extended Boost that automatically adjusts the amount of assist based on the terrain.
RIB is a one-piece battery and cover with a built-in handle that can easily be removed and re-installed in the frame with no tools and no hassle. It’s the most convenient way to remove your battery for transport, security, or just easier charging.
Watch video
To see how far you can ride your electric mountain bike on a single charge, check out Bosch’s range calculator. We’ve auto-filled the variables for this bike model and the average rider, but you can make adjustments to get your most accurate estimate.
Calculate your range
This unique protection shield is lightweight yet robust, and protects the motor from rocks, logs, and other trail debris.
Going for a long ride? Rack mounts make carrying accessories a breeze.
The bike is already internally wired to accept additional lights. Go to your dealer and simply have them attached to the bike and plug them in.
The right wheel size paired with your frame size gives you the perfect combination of responsiveness and control.
Our premium lightweight aluminum is continuously cold extruded and butted at multiple points, and hydroformed into sophisticated tube shapes for maximum strength and minimum weight.
Chainstay mounts make it easy to install a rear kickstand that stays out of your way and supports bikes of all sizes. No more laying or leaning.
*spec applies to all sizes unless otherwise noted
| Frame |
Alpha Platinum Aluminum, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, Motor Armor, Boost148, 12mm thru axle |
| *Fork |
Size:
XS
SR Suntour XCM 34, coil spring, preload, lockout, tapered steerer, 44mm offset, Boost110, 15mm thru axle, 80mm travel |
Size:
S , M , L , XL
SR Suntour XCM 34, coil spring, preload, lockout, tapered steerer, 44mm offset, Boost110, 15mm thru axle, 120mm travel |
| Max compatible fork travel |
120mm (XS & S: 100mm) |
| Hub front |
Formula DC-511, 6-bolt, Boost110, 15mm thru axle |
| Hub rear |
Bontrager Approved DC-3248, sealed bearing, alloy axle, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12mm thru axle |
| Skewer rear |
Bontrager Switch thru axle, removable lever
|
| Rim |
Bontrager Connection, double-wall, 32-hole, 20mm width, presta valve |
| Spokes |
14g stainless steel |
| *Tire |
Size:
XS , S
Bontrager XR3 Comp, wire bead, 30tpi, 27.5x2.35'' |
Size:
M , L , XL
Bontrager XR3 Comp, wire bead, 30tpi, 29x2.30''
|
| Max tire size |
Frame: 29x2.60" or 27.5x2.8" (XS & S: 27.5x2.60") Fork: See manufacturer |
| Shifter |
Shimano Deore M4100, 10 speed |
| Rear derailleur |
Shimano Deore M5120, long cage |
| Crank |
FSA Bosch CK-220, 36T ring, 165mm length |
| Cassette |
Shimano Deore M4100, 11-46, 10 speed |
| Chain |
KMC X10, 10 speed
|
| Pedal |
VP-536 nylon platform
|
| Max chainring size |
38T |
| Saddle |
Bontrager Commuter Comp
|
| *Seatpost |
Size:
XS , S
Bontrager alloy, 31.6mm, 12mm offset, 330mm length |
Size:
M
Bontrager alloy, 31.6mm, 12mm offset, 360mm length |
Size:
L , XL
Bontrager alloy, 31.6mm, 12mm offset, 400mm length |
| *Handlebar |
Size:
XS , S
Bontrager alloy, 31.8mm, 15mm rise, 720mm width |
Size:
M , L , XL
Bontrager alloy, 31.8mm, 15mm rise, 750mm width |
| Grips |
Bontrager XR Endurance Comp, lock-on
|
| *Stem |
Size:
XS
Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 50mm length |
Size:
S , M
Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 60mm length
|
Size:
L , XL
Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 70mm length
|
| Headset |
FSA IS-2, 1-1/8'' top, 1.5'' bottom |
| Brake rotor |
Tektro, 6-bolt, 203mm |
| Brake Set |
Tektro HD-M275 hydraulic disc
|
| Battery |
Bosch PowerTube 500Wh |
| Charger |
Bosch compact 2A, 100-240V, smart system |
| Controller |
Bosch Purion |
| Motor |
Bosch Performance CX, magnesium motor body, 250 watt, 85 Nm, 20mph or 32km/h max assist |
| Weight |
M - 23.37 kg / 51.53 lbs |
| Weight limit |
This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg). |
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, materials, and pricing. Prices shown are manufacturer's suggested retail prices.
Bike and frame weights are based off pre-production painted frames at time of publication. Weights may vary in final production.
The charts below show our recommended sizes based on height, but there are some other factors, like arm and leg length, that determine a great fit. That’s why you’ll see some overlap in our recommendations. Not every rider who’s 5´8˝, for example, will fit on the same size bike. The best way to find your perfect fit is to consult the experts at your local retailer.
All measurements provided in cm unless otherwise noted.
| 13.5 |
XS |
27.5" |
36.3 |
70.0° |
12.0 |
65.0° |
57.9 |
32.8 |
3.7 |
45.5 |
5.1 |
11.4 |
113.5 |
70.6 |
35.2 |
62.1 |
| 15.5 |
S |
27.5" |
39.4 |
71.5° |
13.0 |
67.6° |
59.8 |
30.7 |
4.9 |
45.5 |
4.2 |
10.1 |
112.5 |
72.1 |
39.0 |
62.3 |
| 17.5 |
M |
29" |
41.9 |
71.7° |
13.0 |
67.7° |
61.7 |
32.4 |
4.9 |
45.5 |
5.1 |
9.8 |
115.5 |
79.4 |
40.6 |
63.9 |
| 19.5 |
L |
29" |
47.0 |
71.7° |
14.0 |
67.7° |
64.1 |
32.4 |
5.0 |
45.5 |
5.1 |
9.8 |
118.0 |
81.6 |
42.7 |
64.8 |
| 21.5 |
XL |
29" |
52.1 |
71.7° |
16.0 |
67.7° |
67.2 |
32.4 |
5.0 |
45.5 |
5.1 |
9.8 |
121.2 |
81.8 |
45.2 |
66.7 |
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