Powerfly 4 is Trek's 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 Trek's user-friendly Removable Integrated Battery (RIB) system, which is fully encased in the frame yet doesn't require tools for removal. This bike expands your boundaries and lets you travel to destinations that you never thought you'd reach on a mountain bike.
| Front Hub | Formula DC-511, 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 | Bontrager Connection, double-wall, 32-hole, 20mm width, presta valve |
| 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 |
| Saddle | Bontrager Commuter Comp, 165mm width |
| Seatpost | Bontrager alloy, 31.6mm, 12mm offset, 400mm length |
| Handlebar | Bontrager alloy, 31.8mm, 15mm rise, 750mm width |
| Stem | Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 70mm length |
| Grips | Bontrager XR Endurance Comp, lock-on |
| Headset | FSA IS-2, 1-1/8" top, 1.5" bottom |
| Brakeset | Tektro HD-M275 hydraulic disc, 203mm rotors |
| Battery | Bosch PowerTube 500 |
| Controller | Bosch Purion |
| Motor | Bosch Performance CX, magnesium motor body, 250 watt, 75 Nm, 20mph or 32km/h max assist |
| Frame | Alpha Platinum Aluminium, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, Motor Armour, B |
| Fork | SR Suntour XCM 34, coil spring, preload, lockout, tapered steerer, 44mm offset, Boost110, 15mm thru axle, 120mm travel |