The Powerfly 4 625 takes our most affordable electric mountain bike, and gives it a boost with a longer-range 625 watt-hour battery. Of course, you still get our user-friendly Removable Integrated Battery (RIB) system that's super easy to remove and reinstall, plus all the other parts that make Powerfly 4 your ideal entry into the joys of riding a pedal-assist bike on or off road.

Key Features

• Bosch Performance CX motor: Perfect for tackling the climbs
• 625Wh Battery: Gives you a peace of mind with its higher range
• Hydraulic Disc Brakes: Reliable braking performance in all conditions

• Frame: Alpha Platinum Aluminum, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, Motor Armor, Boost148, 12mm thru axle
• Fork: SR Suntour XCM 34, coil spring, preload, lockout, tapered steerer, 44mm offset, Boost110, 15mm thru axle, 80mm travel
• Motor: Bosch Performance CX, magnesium motor body, 250 watt, 85 Nm, 15.5mph or 25km/h max assist
• Battery: Bosch PowerTube 625
• Controller: Bosch Purion
• Gear Shifters: Shimano Deore M4100, 10 speed
• Chainset: FSA Bosch CK-220, 36T ring, 165mm length
• Rear Cassette: Shimano Deore M4100, 11-46, 10 speed
• Chain: KMC X10, 10 speed
• Front Derailleur: N/A
• Rear Derailleur: Shimano Deore M5120, long cage
• Pedals: VP-536 nylon platform
• Rims: Bontrager Connection, double-wall, 32-hole, 20mm width, presta valve
• 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
• Front Tyre: Bontrager XR3 Comp, wire bead, 30tpi, 29x2.30"
• Rear Tyre: Bontrager XR3 Comp, wire bead, 30tpi, 29x2.30"
• Brakes: Tektro HD-M275 hydraulic disc, 203mm rotors
• Handlebars: Bontrager alloy, 31.8mm, 15mm rise, 750mm width
• Headset: FSA IS-2, 1-1/8" top, 1.5" bottom
• Stem: Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 70mm length
• Saddle: Bontrager Commuter Comp, 165mm width
• Seatpost: Bontrager alloy, 31.6mm, 12mm offset, 400mm length

 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, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.