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.
- Frame
Alpha Platinum Aluminium, Removable Integrated Battery (RIB 2.0), tapered headtube, guided internal routing, Motor Armor, Mino Link adjustable geometry, adjustable leverage rate, 34.9 mm seat tube, ABP, UDH, rack and mudguard mounts, Boost 148, 120 mm travel
- Fork
RockShox Recon Silver, Solo Air spring, Motion Control damper, lockout, tapered steerer, 42 mm offset, Boost110, Maxle Stealth, mudguard mounts, 130 mm travel
- Shock
RockShox Deluxe Select, 210x50mm
Hub front
Shimano TC500 alloy, CentreLock, 110x15 mm thru axle
- Hub rear
Shimano TC500 alloy, CentreLock, 148x12 mm thru axle
- *Rim
- Spokes
14 g stainless steel, black
- *Tyre
- Max tyre size
- Frame: 29x2.50" (S: 27.5x2.50"), Fork: see manufacturer
- Battery
Bosch PowerTube 800 Wh, smart system
- Charger
Bosch standard 2A, 230V, smart system
- E-bike Classification
- Class 1
- Max assist speed
- 15.5 mph
- Shifter
- Rear derailleur
- Crank
FSA Bosch CK-220, 36T ring, 165 mm length
- Chainring
- Cassette
Shimano CUES LG300, LINKGLIDE, 11-48, 10-speed
- Chain
Shimano LG500, 9/10/11-speed
- Pedal
- Max. chainring size
- 1x: 38T
- Saddle
Bontrager Verse P3, steel rails
- *Seatpost
Size: M
TranzX JD-YSI34, 150 mm travel, internal routing, 31.6 mm, 456 mm length
Size: L , XL
TranzX JD-YSI34, 170 mm travel, internal routing, 31.6 mm, 500 mm length
- Handlebar
- Grips
- Stem
- Head set
FSA IS-2, 1-1/8" top, 1.5" bottom
- Brake
Tektro HD-M5140 hydraulic disc
- Brake rotor
Tektro, CentreLock, 203 mm
- Max rotor size
- Max brake rotor sizes – Frame: 220 mm, min 180 mm, Fork: see fork manufacturer
- Weight
- M – 25.50 kg / 56.22 lb
- Weight limit
- This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).
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.