Trek Powerfly 4 Gen 4



Powerfly 4 is our most affordable electric mountain bike. It's built with parts that hold up, like a smooth-shifting Shimano drivetrain, and a powerful Bosch motor. Plus, it features our user-friendly Removable Integrated Battery (RIB) system that's fully encased in the frame yet doesn't require tools for removal. This bike expands your boundaries and lets you travel to destinations you never thought you'd reach on a mountain bike.

*Frame Size: XS , S
Alpha Platinum Aluminum, curved top tube, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, Motor Armor, Boost148, 12mm thru axle
Size: M , L , XL
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, 44 mm offset, Boost110, 15 mm thru axle, 80 mm 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 (526mm axle-to-crown), XS: 80mm (492mm axle-to-crown)
Wheels
Hub front Formula DC-511, 6-bolt, Boost110, 15mm thru axle
Hub rear Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12 mm thru axle
Skewer rear Bontrager Switch thru axle, removable lever
Rim Bontrager Connection, double-wall, 32-hole, 20 mm width, Presta valve
*Tire 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"
Max tire size Frame: 29x2.60" or 27.5x2.80" (XS & S: 27.5x2.60"), Fork: See manufacturer
E-system
Battery Bosch PowerTube 500Wh, smart system
Charger Bosch standard 4A, 110V, smart system
Controller Bosch Intuvia 100, smart system
Computer Bosch LED remote, smart system
Motor Bosch Performance Line CX, smart system, magnesium motor body, 85 Nm
Drivetrain
Shifter Shimano Deore M4100, 10 speed
Rear derailleur Shimano Deore M5120, long cage
Crank FSA Bosch CK-220, 36T ring, 165 mm length
Chain ring FSA, 36T, steel
Cassette Shimano Deore M4100, 11-46, 10 speed
Chain KMC X10, 10 speed
Pedal VP-536 nylon platform
Max chainring size 1x: 38T
Components
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 Comp, 31.8mm, Blendr compatible, 7 degree, 50mm length
Size: S , M
Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 60mm length
Size: L , XL
Bontrager Comp, 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
Rotor size Max brake rotor sizes - Frame: 203mm, Fork: see fork manufacturer
Weight
Weight M - 23.94 kg / 52.78 lbs
Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).

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