Powerfly FS 9 is a full suspension electric mountain bike that gives you the traction and capability of a true mid-fat trail bike with the added benefit of a powerful Bosch motor. 27.5+ tyres, a 1x12 SRAM GX Eagle drivetrain, and 130 mm front and rear suspension with a RockShox Pike RC fork deliver incredible performance on even the most rugged trails.
It's right for you if...
Capability is key. You're looking for the full performance package in your e-MTB, and it's especially important that your trail bike has the suspension and parts spec that will hold up on gnarly trails, give you the traction to scramble up loose climbs and help you take on bigger all-mountain adventures.
The tech you get
A durable Alpha Platinum Aluminium frame that fully encases a long-range 500 Wh battery for great aesthetics and protection on the trail, a Bosch Performance CX motor and a Purion controller. Plus, 130 mm front and rear travel with a RockShox Pike RC fork with an ultra-smooth Charger2 damper, grippy 27.5+ mid-fat tyres, a Bontrager Line dropper post and a SRAM GX Eagle drivetrain. The Tubeless Ready Bontrager Powerline Comp 40 wheels are made specifically for the rigours of e-MTB use, and the 4-piston XT brakes provide extra stopping power.
The final word
The latest in e-MTB frame design, a powerful Bosch motor, 27.5+ mid-fat tyres, and a major upgrade in drivetrain and suspension give Powerfly FS 9 an incredible amount of capability on rugged all-mountain rides.
Why you'll love it
Trek's Removable Integrated Battery (RIB) system looks great and is super user-friendly: it fully hides the battery in the frame for protection, makes it easy remove the battery without tools and lets you mount a water bottle cage – even on full suspension e-MTBs
This model gets parts chosen specifically for e-MTB use, like Shimano XT 4-piston brakes and stout Powerline Comp wheels
It rides like a mountain bike because it is one: it has the same frame and suspension tech that we've refined in our decades-long trail heritage
When you power down the assist, you have a fully capable trail bike that's ready to take on rugged terrain
Even when the trail gets rough, the wide 27.5+ tyres deliver more confidence, traction and stability
Specifications
Frameset
Frame: Alpha Platinum Aluminium, ABP, Removable Integrated Battery (RIB), EVO link, tapered head tube, Knock Block, internal derailleur and dropper post routing, G2 Geometry, Boost148, 130mm travel
Front suspension: RockShox Pike RC, DebonAir, Charger 2 damper, lockout, tapered steerer, Boost110, G2 Geometry, 130 mm travel
Rear suspension: RockShox Deluxe RL, 205x50 mm
Wheels
Wheels: Bontrager Powerline Comp 40, 54T Rapid Drive, Tubeless Ready, Boost110 front, Boost148 rear, tubeless strips included, valves sold separately
Tyres: Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, 120 tpi, aramid bead, 27.5x2.80˝
Drivetrain
Shifters: SRAM GX Eagle single-click, 12 speed
Rear derailleur: SRAM GX Eagle, Roller Bearing Clutch
Crank: SRAM X1, 15T w/chain guard
Cassette: SRAM XG-1230 Eagle, 11-50, 12-speed
Chain: SRAM NX Eagle
Pedals: VP-536 nylon platform
Components
Saddle: Bontrager Arvada, hollow chromoly rails
Seatpost: Bontrager Line, internal routing, 31.6 mm, 15.5: 100 mm, 17.5 & 18.5: 125 mm, 19.5 & 21.5: 150 mm
Handlebar: Bontrager Line, 35 mm, 15 mm rise, 750 mm width
Grips: Bontrager XR Trail Elite, alloy lock-on
Stem: Bontrager Line, Knock Block, 35 mm clamp, 0-degree
Head set: Knock Block Integrated, sealed cartridge bearing, 1-1/8˝ top, 1.5˝ bottom
Brake set: Shimano Deore XT M8020 4-piston hydraulic disc
Accessories
Battery: Bosch PowerTube 500 Wh
Controller: Bosch Purion
Motor: Bosch Performance CX
Weight
Weight: 17.5˝ - 23.22 kg / 51.2 lbs (with tubes)
Weight limit: This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).
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, colors, and materials.
Bike and frame weights are based on Trek pre-production painted frames at the time of publication. Weights may vary in final production
Buy Trek Powerfly FS 9 2019 EU Mens Full Suspension E-Bike Grey online