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Powerfly+ FS 4 Gen 4 is a full-suspension electric mountain bike built for getting out there—way out there. It pairs a tough aluminum frame with 130mm front and 120mm rear RockShox suspension to smooth out the rough stuff, while a Bosch motor and powerful 800Wh battery give you the boost to explore farther and climb longer.
Chassis
Alpha Platinum Aluminum, removable integrated battery (RIB 2.0), tapered head tube, guided internal routing, Motor Armor, Mino Link adjustable geometry, adjustable leverage ratio, 34.9mm seat tube, ABP, UDH, rack and fender mounts, Boost 148, 120mm travel
Fork
RockShox Recon Silver, Solo Air spring, Motion Control damper, lockout, tapered steerer, 42mm offset, Boost110, Maxle Stealth, fender mounts, 130mm travel
Suspension
RockShox Deluxe Select, 210 x 50 mm
Wheels
Front hub
Shimano TC500 alloy thru axle, centerlock, 110x15mm
Rear hub
Shimano TC500 alloy thru axle, centerlock, 148x12mm
*Circle
Size: S, M, L, XL
Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23mm width, Presta valve
Size: S, M, L, XL
Bontrager Kovee, double-wall, Tubeless Ready, 32-hole, 23mm width, Presta valve
Rays
14g stainless steel, black
*Tire
Size: S
Bontrager Gunnison Elite XR, Tubeless Ready, rigid bead, 60tpi, 27.5x2.40"
Size: M, L, XL
Bontrager Gunnison Elite XR, Tubeless Ready, rigid bead, 60tpi, 29x2.40"
Max. tire size
Frame: 29x2.50" (S: 27.5x2.50"), Fork: Consult manufacturer
Electronic system
Drums
Bosch PowerTube 800Wh, Smart System
Charger
Bosch standard 2A, 230V, intelligent system
Classification of e-bikes
Class 1
Transmission
Command
Shimano U6000, 10 speed
Rear derailleur
Shimano CUES U6000 GS
Crankset
FSA Bosch CK-220, 36T chainring, 165mm length
Crown
FSA, 36 teeth, steel
Cassette
Shimano CUES LG300, LINKGLIDE, 11-48, 10-speed
Chain
Shimano LG500, 9/10/11 speed
Pedal
Nylon platform
Max. crown size
1x: 38T
Components
Saddle
Bontrager Verse P3, steel rails
*Seatpost
Size: S
TranzX JD-YSI34, 100mm travel, internal cable routing, 31.6mm, 350mm length
Size: M
TranzX JD-YSI34, 150mm travel, internal cable routing, 31.6mm, 456mm length
Size: L, XL
TranzX JD-YSI34, 170mm travel, internal cable routing, 31.6mm, 500mm length
Handlebar
Bontrager Comp, alloy, 31.8mm, 40mm rise, 780mm width
Knobs
Trek Line Comp, nylon lock-on
Handlebar stem
Bontrager Comp, 31.8mm, Blendr compatible, 7-degree, 50mm length
Headset
FSA IS-2, 1-1/8" top, 1.5" bottom
*Brake
Size: S, M, L, XL
Tektro HD-M5140 hydraulic disc
Size: S, M, L, XL
Tektro HD-M5140 hydraulic disc
Brake rotor
Tektro, centerlock, 203mm
Disk size
Max brake rotor size - Frame: 220mm, min 180mm, Fork: Consult fork manufacturer
Weight