(no reviews)Product ID: 285068
Trek Powerfly FS+ 8 Gen 4 2027 - Electric Mountain Bike
Price: £5,250.00



Powerfly FS+ 8 is a full-power, full suspension electric mountain bike ready for adventure. Its sturdy Alpha Platinum Aluminium frame pairs with 130mm front and 120mm rear Fox suspension to smooth out rough trails, while a 12-speed wireless Shimano XT Di2 drivetrain keeps shifting ultra-smooth through even the roughest terrain.
Occasionally, without notice, manufacturers change product design and/or specifications.
| 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 |
| Fork | Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt axle Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110 |
| Rear Shock | Fox Float Rhythm, 2-position damper, 210x50 mm |
| Headset | FSA IS-2, 1-1/8" top, 1.5" bottom |
| Stem | Bontrager Rhythm Comp, 31.8 mm, 0-degree |
| Bars | Bontrager Comp, alloy, 31.8 mm, 40mm rise |
| Front Brake | Shimano XT M8220 4-piston hydraulic disc |
| Rear Brake | Shimano XT M8220 4-piston hydraulic disc |
| Rear Mech | Shimano XT Di2 M8260, 12-speed |
| Shifters | Shimano XT Di2 M8250, 12-speed |
| Speed | 12 |
| Front Hub | Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle |
| Rear Hub | Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, Shimano freehub, Boost148, 12 mm thru axle |
| Front Tyre | Bontrager Gunnison Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.40" |
| Rear Tyre | Bontrager Gunnison Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.40" |
| Seat Post | Bontrager Line Dropper, MaxFlow, internal routing, 31.6 mm |
| Saddle | Bontrager Verse P3, steel rails |
| Chain | Shimano Deore M6100, 12-speed |
| Cassette | Shimano XT M8100, 10-51, 12-speed |
| Pedals | VP-536 nylon platform |
| Battery Size (WH) | Bosch PowerTube 800 Wh, smart system |
| Motor | Bosch Performance Line CX |
| User Interface | Bosch Kiox 300, smart system |
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Trek Powerfly+ FS Gen 4 Size Chart
| Size | Height cm | Height Feet / Inches | Inseam cm | Inseam Inches |
|---|---|---|---|---|
| S | 155 - 165 cm | 5'1" - 5'5" | 74 - 78 cm | 29" - 31" |
| M | 165 - 176 cm | 5'5" - 5'9" | 79 - 83 cm | 31" - 33" |
| L | 177 - 188 cm | 5'10" - 6'2" | 84 - 89 cm | 33" - 35" |
| XL | 188 - 195 cm | 6'2" - 6'5" | 89 - 91 cm | 35" - 36" |
What size frame do I need if I am between sizes? - read here
Trek Powerfly FS+ Gen 4 2025 Geometry Chart
| Size | S | M | L | XL |
|---|---|---|---|---|
| Stack | 597 | 629 | 647 | 666 |
| Reach | 425 | 450 | 475 | 500 |
| Head Tube Length | 130 | 110 | 130 | 150 |
| Head Tube Angle | 65.0° | 66.0° | 66.0° | 66.0° |
| Bottom Bracket Height | 330 | 335 | 335 | 335 |
| Bottom Bracket Drop | 30 | 45 | 45 | 45 |
| Trail | 123 | 125 | 125 | 125 |
| Fork Rake/Offset | 44 | 44 | 44 | 44 |
| Chainstay Length | 458 | 461 | 461 | 461 |
| Wheelbase | 1201 | 1223 | 1257 | 1290 |
| Top Tube Length (horizontal) | 563 | 595 | 630 | 654 |
| Standover Height | 756 | 780 | 775 | 778 |
| Seat Tube Length | 380 | 400 | 420 | 450 |
| Seat Tube Angle | 71.1° | 71.3° | 71.2° | 72.4° |
| Effective Seat Tube Angle | 77.0° | 77.0° | 77.0° | 77.0° |
All measurements are in mm unless otherwise stated.
The above table shows the standard geometry for the bicycle as shipped, other geometry configurations may be available with certain bikes. Please contact us via Live Chat to find out more.
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(no reviews)Product ID: 285068
Trek Powerfly FS+ 8 Gen 4 2027 - Electric Mountain Bike
The Trek Powerfly FS+ 8 Gen 4 is a premium full-suspension electric mountain bike built for demanding trails. Bosch-powered assistance, responsive suspension and high-performance components deliver confident climbing, control and all-day capability.
Read MoreUsually built & dispatched in 5-8 working days
Price: £5,250.00