Trek Powerfly FS+ 8 Gen 4 2026 Electric Mountain Bike

The Powerfly FS+ 8 is a deluxe full-power, full suspension electric mountain bike ready for adventure. Its sturdy Alpha Platinum Aluminium frame partners with a Fox suspension fork and shock (120 mm rear, 130 mm front) to smooth out rough trails, while a 12-speed wireless SRAM GX Eagle AXS transmission keeps shifting ultra-smooth through even the roughest terrain. 4-piston SRAM DB 8 hydraulic disc brakes provide stop-on-a-dime control for loose, wet and steep trails.

Specifications Frameset Frame: Alpha Platinum Aluminium, Removable Integrated Battery (RIB 2.0), tapered headtube, guided internal routing, Motor Armor, angle-adjust headset, Mino Link adjustable geometry, adjustable leverage rate, 34.9 mm seat tube, ABP, UDH, rack and mudguard mounts, Boost 148, 120 mm travel Fork: Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt axle, 130mm travel Rear Shock: Fox Float Rhythm, 2-position damper, 210x50 mm Wheels Rims: Bontrager Line Comp 30, Tubeless Ready Tyres: Bontrager Gunnison Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.40 Drivetrain Crankset: SRAM GX, 160 mm length Shifters: SRAM AXS POD Rear Derailleur: SRAM GX Eagle AXS, T-Type Chain: SRAM GX Eagle, T-Type, 12-speed Cassette: SRAM Eagle XS-1275, T-Type,10-52, 12-speed Components Handlebar: Bontrager Comp, alloy, 31.8 mm, 40mm rise, 780 mm width Stem: Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 50 mm length Grips: Bontrager XR Trail Comp, nylon lock-on Brakes: SRAM DB 8 4-piston hydraulic disc Saddle: Bontrager Verse P3, steel rails Seatpost: Bontrager Line Dropper, 170 mm travel, Max Flow, internal routing, 31.6 mm Extras: Trek Custom Fender E-System Motor: Bosch Performance Line CX, 20 mph / 32 km/h max assist (25 km/h max assist in EU and APAC) Battery: Bosch Power Tube 800 Wh, smart system Controller: Bosch LED remote, smart system Trek Powerfly Sizing S M L XL Rider Height (cm) 155 - 165 165 - 176 177 - 188 188 - 195 Inseam (cm) 74 - 78 79 - 83 84 - 89 89 - 91