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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 that an e-MTB with the latest user-friendly tech is the best way to get them.

The tech you get

A tough yet refined aluminium frame that fully encases a long-range 500 Wh battery for sleek looks, a Bosch Performance CX (250 W, 75 Nm) motor that assists up to 25 km/h, a Bosch Purion controller, a 1x10 Shimano drive train, an 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.

The Walkthrough

favorite_borderWhy you'll love it

  1. 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
  2. This bike expands boundaries: the top-notch Bosch system is equally suited to commuting, recreation and a ridiculously fun time on the trails
  3. The Purion controller has Walk Assist and an intelligent eMTB mode that automatically delivers the right amount of power based on your terrain
  4. It's equipped with an external charging port for easy charging on or off the bike
  5. You can boost your Powerfly’s utility by adding a rack and mudguards, plus built-in wiring lets you easily install lights powered by the motor


Features

Will my bike have a curved top tube?

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. The larger frames (M and ML) have a straight top tube because taller riders with longer legs typically don’t have the same issues with standover height.

New Bosch Performance Line CX

New Bosch Performance Line CX

The all-new Bosch Performance Line CX motor is lighter, smaller and quieter than previous versions, for cleaner integration and more nimble handling. It’s also more efficient so you can go further on a single battery charge. Use the intelligent eMTB mode to automatically adjust the amount of assist to match the terrain. It’s a set-and-forget mode that delivers just the right amount of power so you can focus on enjoying the ride.

Removable Integrated Battery

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

Specifications

*spec applies to all sizes unless otherwise noted

Frameset
Frame Alpha Platinum Aluminium, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, Motor Armor, Boost148
Fork SR Suntour XCM 34, coil spring, preload, lockout, tapered steerer, 44 mm offset, Boost110, 15 mm thru axle, 120 mm travel
Wheels
Hub front Formula DC-511, 6-bolt, Boost110, 15 mm thru axle
Hub rear Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12 mm thru axle
Rim Bontrager Connection, double-wall, 32-hole, 20 mm width, Presta valve
Spokes 14 g stainless steel, black
*Tyre Size: S
Bontrager XR3 Comp, wire bead, 30 tpi, 27.5x2.35"
Size: M , L , XL
Bontrager XR3 Comp, wire bead, 30 tpi, 29x2.30"
Drivetrain
Shifter Shimano Deore M4100, 10 speed
Rear derailleur Shimano Deore M5120, long cage
Crank FSA Bosch CK-220, 36T ring, 165 mm length
Cassette Shimano Deore M4100, 11-46, 10-speed
Chain KMC X10, 10-speed
Pedal VP-536 nylon platform
Components
Saddle Bontrager Commuter Comp
*Seatpost Size: S
Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length
Size: M
Bontrager alloy, 31.6 mm, 12 mm offset, 360 mm length
Size: L , XL
Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length
*Handlebar Size: 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
Grips Bontrager XR Endurance Comp
*Stem Size: S , M
Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 60 mm length
Size: L , XL
Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length
Head set FSA IS-2, 1-1/8" top, 1.5" bottom
Brake Tektro HD-M275 hydraulic disc
Brake rotor Tektro, 203 mm, 6-bolt
Accessories
Battery Bosch PowerTube, vertical, 500 wh
Charger Bosch compact 2A (100-240 V) charger
Controller Bosch Purion
Motor Bosch Performance CX, magnesium motor body, 250 watt, 85 Nm, 25 km/h (15.5 mph) max assist, 32 km/h for New Zealand
Weight
Weight M - 23.67 kg / 52.18 lbs (with tubes)
Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).
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, and materials.
Bike and frame weights are based on Trek pre-production painted frames at the time of publication. Weights may vary in final production

Sizing & fit

Proper bike fit is essential for best performance and comfort. Any size and geometry measurements shown on trekbikes.com are for general comparison purposes only. To find your perfect fit, visit an authorised Trek retailer, where an expert skilled at sizing will help you find the appropriate bike and size for your individual needs.

 

Rider Height

Inseam

All measurements provided in cm unless otherwise stated.

Frame size number Frame size letter Wheel size A — Seat tube Effective seat tube angle C — Head tube length D — Head angle E — Effective top tube F — Bottom bracket height G — Bottom bracket drop H — Chainstay length I — Offset J — Trail K — Wheelbase L — Standover M — Frame reach N — Frame stack
14.5 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 74.3 35.2 62.1
15.5 S 27.5" 39.4 71.6° 13.0 67.6° 59.8 30.7 4.9 45.5 4.2 10.1 112.5 72.2 39.0 62.3
17.5 M 29" 41.9 71.7° 13.0 67.7° 61.8 32.4 4.9 45.5 5.1 9.8 115.3 79.5 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 75.8 42.7 64.9
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 76.8 45.2 66.7

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