The Powerfly FS 4 625 is a full-suspension electric mountain bike built to tackle rugged trail adventures. The plush suspension set-up soaks up rough terrain, and the powerful Bosch electric drive system and long-range battery boost your capacity to crush climbs and mile after mile of singletrack.
It's right for you if...
You want to get out and explore more trails. You're looking for an e-MTB with trail-smoothing full suspension and the reliable, leg-boosting power of an electric drive system made specifically for the demands of off-road riding.
The tech you get
A durable aluminium frame that fully encases a long-range 625 Wh battery, a powerful Bosch Performance CX (250 W, 75 Nm) motor that helps you sustain speeds of up to 25 km/h and an ergonomic Purion controller. Plus, an SR Suntour 120 mm suspension fork, 100 mm of rear travel, a 10-speed Shimano drive train, powerful hydraulic disc brakes and a dropper post.
The final word
This full suspension e-MTB is comfortable, efficient and fast on rough terrain. The powerful Bosch electric drive system makes it possible to tackle any climb you encounter and adventure farther than ever.
Why you'll love it
- For e-MTB, full suspension is a game-changer: it soaks up rugged terrain, so you can ride the Bosch pedal-assist system to its full potential
- The 625 Wh battery gives you more juice per charge, which equals more runs and more fun
- Trek's Removable Integrated Battery (RIB) system looks great and is super user-friendly: it fully hides the battery in the frame for protection, makes it easy to remove the battery without tools and lets you mount a water bottle cage – even on full suspension e-MTBs
- The Purion controller has Walk Assist and an intelligent eMTB mode that automatically delivers the right amount of power based on your terrain
- The size S frame features a curved top tube that makes standing over the bike easier. Plus, Smart Wheel Sizing means you'll get the fastest wheel that fits – 29˝ wheels on larger frames, 27.5˝ wheels on smaller frames
Specifications
Frameset
Frame: Alpha Platinum Aluminum, Removable Integrated Battery (RIB), tapered head tube, Knock Block, internal routing, Motor Armor, magnesium rocker link, rack and fender mount, ABP, Boost148, 100mm travel
Fork: SR Suntour XCR 34, air spring, LO R damper, hydraulic lockout, tapered steerer, 44mm offset, oversized crown for eMTB, Boost110, 15mm bolt-on thru axle, 120mm travel
Rear suspension: SR Suntour Edge R, 190x45mm
Wheels
Front hub: Bontrager sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle
Rear hub: Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12mm thru axle
Rims: Alex MD35, Tubeless Ready, 32-hole, 35mm width, presta valve
Tyres: Bontrager XR3 Comp, wire bead, 30tpi, 29x2.30"
Drivetrain
Shifters: 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
Pedals: VP-536 nylon platform
Components
Saddle: Bontrager Arvada, steel rails, 138mm width
Seatpost: TranzX JD-YSP18 dropper, internal routing, 31.6mm
Handlebar: Bontrager alloy, 31.8mm, 15mm rise
Grips: Bontrager XR Trail Comp, nylon lock-on
Stem: Bontrager alloy, 31.8mm, Blendr compatible, 7 degree
Brake set: Tektro HD-M275 hydraulic disc
Accessories
Battery: Bosch PowerTube 625
Controller: Bosch Purion
Motor: Bosch Performance CX, magnesium motor body, 250 watt, 75 Nm, 25km/h
Weight
Weight limit: This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).
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