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It's right for you if...

You've seen the e-bike light and want to expand your boundaries. Like us, you believe that nothing should stand between you and your next great ride, including big climbs, headwinds and rugged trails you wouldn't otherwise be able to explore.

The tech you get

A lightweight and durable aluminium frame that fully encases a 625 Wh battery for sleek looks and protection on the trail, a Bosch Performance CX (250 W, 75 Nm) motor that assists up to 25 km/h and an ergonomic Bosch Purion controller. A RockShox Recon RL fork with 120 mm (XS: 80 mm) of travel and a SRAM 1x12 drive train. Bontrager Kovee Comp 23 tubeless-ready wheels.

The final word

With Powerfly 5, you get parts upgrades that make a big difference riding off-road, like an air-spring fork that's smooth and adjustable for your own weight, plus more powerful 4-piston brakes and wheels that make it easy to ditch the tubes for better traction and flat protection.

The Walkthrough

favorite_borderWhy you'll love it

  1. The new, better-than-ever Bosch motor is smaller, lighter and more efficient. It feels more natural while you’re pedalling, and has less drag when you’re not
  2. 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
  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. The SRAM Eagle drive train gives you a lot of gears and a wider gear range, so you can always find the right cadence for getting the most out of the motor
  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

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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.

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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 Size: XS
RockShox Recon Silver RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 46 mm offset, oversized crown for eMTB, Boost110, Maxle Stealth, 80 mm travel
Size: S
RockShox Recon Silver RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 46 mm offset, oversized crown for eMTB, Boost110, Maxle Stealth, 120 mm travel
Size: M , L , XL
RockShox Recon Silver RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 42 mm offset, oversized crown for eMTB, Boost110, Maxle Stealth, 120 mm travel
Wheels
Wheel front Bontrager Kovee Comp 23, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle
Wheel rear Bontrager Kovee Comp 23, Tubeless Ready, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12 mm thru axle
Hub front Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle
Rim Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23 mm width, Presta valve
*Tyre Size: XS , S
Bontrager XR3 Comp, wire bead, 30 tpi, 27.5x2.35"
Size: M , L , XL
Bontrager XR3 Comp, wire bead, 30 tpi, 29x2.30"
Rim strip Bontrager TLR
Drivetrain
Shifter SRAM SX Eagle single-click, 12-speed
Rear derailleur SRAM NX Eagle
Crank SRAM X1 1000, 36T, 165 mm length
Cassette SRAM PG-1210 Eagle, 11-50, 12-speed
Chain SRAM SX Eagle, 12-speed
Pedal VP-536 nylon platform
Components
Saddle Bontrager Commuter Comp
*Seatpost Size: XS , 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: 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
Grips Bontrager XR Endurance Comp
*Stem Size: XS
Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree, 50 mm length
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 Shimano MT420 4-piston hydraulic disc
Brake rotor Shimano RT66, 203 mm, 6-bolt
Accessories
Battery Bosch PowerTube 625
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 - 23.00 kg / 50.70 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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