The Trek Powerfly FS+ 6 Gen 4 steps things up with improved components for riders who spend more time off-road. It’s a capable full-suspension electric mountain bike that rewards confident trail riding without becoming overly aggressive.
Compared to lower-spec FS+ models, the FS+ 6 feels more composed when the pace increases. Upgraded suspension and drivetrain components deliver better control on technical climbs and descents, making it well suited to trail centres and rougher terrain.
IT’S RIGHT FOR YOU IF…
You regularly ride more challenging off-road terrain and want improved control, composure and confidence. You’re progressing your skills and want a bike that feels planted when trails get rougher, without stepping into race-focused territory.
This is a great choice for riders spending more time at trail centres or tackling longer, more technical routes.
THE TECH YOU GET…
An Alpha Platinum Aluminium full-suspension frame paired with the Bosch Performance Line CX motor delivers powerful, predictable assistance across roots, rocks and uneven terrain.
Upgraded suspension improves sensitivity and traction, while a higher-performance drivetrain and strong hydraulic disc brakes complete a build designed for more demanding riding conditions.
THE FINAL WORD…
The Powerfly FS+ 6 strikes a strong balance between comfort and trail capability. It’s ideal for riders who want to push further off-road without going full race-bike — and if you’re still deciding between models, our Powerfly Buyer Guide explains how it compares across the range.
Specifications
| *Frame |
Size: M , L , S , XL
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 |
Size: M , L , S , XL
Fox AWL Rail HD, Rail 2.0 damper, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt axle, 180 mm direct mount, 130 mm travel
|
| *Shock |
Size: M , L , S , XL
Fox Float Rhythm, 2-position damper, 210x50 mm
|
Wheels
| *Front Hub |
Size: M , L , S , XL
Shimano TC500 alloy, CentreLock, 110x15 mm thru axle
|
|---|---|
| *Rear Hub |
Size: M , L , S , XL
Shimano TC500 alloy, CentreLock, 148x12 mm thru axle
|
| *Rear Skewer | Size: M , L , S , XLBontrager Switch thru-axle, removable lever |
| *Rim | Size: M , L , S , XLBontrager Line TLR 30, Tubeless-Ready, 28-hole, Presta valve |
| Size: M , L , S , XLBontrager Line TLR 30, Tubeless-Ready, 32-hole, Presta valve | |
| *Spokes |
Size: M , L , S , XL
14 g stainless steel, black
|
| *Tire |
Size: S
Bontrager Gunnison Pro XR, Tubeless-Ready, wire bead, 60 tpi, 27.5x2.40"
|
|
Size: M , L , XL
Bontrager Gunnison Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.40"
|
|
| *Tire Part |
Size: M , L , S , XL
Bontrager TLR sealant, 180 ml/6 oz
|
| *Rim Strip | Size: M , L , S , XLBontrager TLR |
| Max tyre size | Frame: 29x2.50" (S: 27.5x2.50"), Fork: see manufacturer |
E-system
| *Battery |
Size: M , L , S , XL
Bosch PowerTube 800 Wh, smart system
|
|---|---|
| *Charger |
Size: M , L , S , XL
Bosch standard 4A, 230V, smart system
|
| *Computer |
Size: M , L , S , XL
Bosch Purion 200
|
| *Motor |
Size: M , L , S , XL
Bosch Performance Line CX, 20 mph / 32 km/h max assist (25 km/h max assist in EU and APAC)
|
Drivetrain
| *Shifter |
Size: M , L , S , XL
Shimano SLX M7100, 12-speed
|
|---|---|
| *Rear Derailleur |
Size: M , L , S , XL
Shimano XT M8100, long cage
|
| *Crank Arm |
Size: M , L , S , XL
E*thirteen E*spec Plus, 160 mm length
|
| *Cassette |
Size: M , L , S , XL
Shimano Deore M6100, 10-51, 12-speed
|
| *Chain |
Size: M , L , S , XL
Shimano Deore M6100, 12-speed
|
| *Pedal | Size: M , L , S , XLVP-536 nylon platform |
| Max. chainring size | 1x: 38T |
Components
| *Saddle |
Size: M , L , S , XL
Bontrager Verse P3, steel rails
|
|---|---|
| *Seatpost |
Size: S
Bontrager Line Dropper, 100mm travel, MaxFlow, internal routing, 31.6 mm, 310 mm length
|
|
Size: M , L , XL
Bontrager Line Dropper, 170 mm travel, MaxFlow, internal routing, 31.6 mm, 450 mm length
|
|
| *Handlebar | Size: M , L , S , XLBontrager Comp, alloy, 31.8 mm, 40mm rise, 780 mm width |
| *Grips |
Size: M , L , S , XL
Bontrager XR Trail Comp, nylon lock-on
|
| *Stem | Size: M , L , S , XLBontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 50 mm length |
| *Headset |
Size: M , L , S , XL
FSA IS-2, 1-1/8" top, 1.5" bottom
|
| *Brake |
Size: M , L , S , XL
Shimano 4-piston hydraulic disc, M6100 lever, M6120 calliper
|
| *Brake Rotor |
Size: M , L , S , XL
Shimano RT64, CentreLock, 203 mm
|
| Rotor size | Max brake rotor sizes – Frame: 220 mm, min 180 mm, Fork: see fork manufacturer |
Accessories
| *Fender | Size: M , L , S , XLTrek 27.5" custom fender |
|---|
Weight
| Weight | M – 25.08 kg/55.3 lb (with TLR sealant, no 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, 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.
Personalised Bike Consultation
Not sure which model is perfect for you? Our expert team at All Ride Now in Midhurst, West Sussex is here to help you choose with confidence.
- Will you be riding mainly on or off-road?
- Do you prefer an upright or sportier riding position?
- Are you looking for longer range, lighter weight, or a more comfortable feel?
Through a friendly consultation – in-store, by phone, live chat or email – we’ll help you narrow down your options and find the bike that best fits your needs.
