TrekPowerfly+ FS 4 800 Gen 4
- Motor
- Bosch Performance Line CX85–120 Nm (Trek figure)
- Battery
- 800 WhRemovable (RIB 2.0)
- Travel F / R
- 130 / 120 mm
- Wheels
- 29" (S: 27.5")
- Frame
- Alloy
Overview
The Trek Powerfly+ FS 4 800 Gen 4 (£3,700) is a mid-range build of the Powerfly+ FS: alloy frame, Bosch Performance Line CX motor with 800 Wh, RockShox Recon Silver fork, RockShox Deluxe Select shock, Shimano CUES U6000 GS and Tektro HD-M5140 hydraulic disc brakes.
The Powerfly+ FS is Trek's full-suspension adventure e-MTB: an Alpha Platinum aluminium frame with 120 mm of rear travel, 29-inch wheels (27.5-inch on size S) and the Bosch Performance Line CX motor with a removable 600 or 800 Wh battery.
- 120 mm rear travel
- Bosch Performance Line CX
- 600 or 800 Wh removable battery
- Alpha Platinum aluminium frame
Gallery
Photos: Trek
Full specifications
Frame & suspension
- Shock
- RockShox Deluxe Select, 210x50mm
- 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
E-system
- Battery
- Bosch PowerTube 800 Wh, smart system
- Charger
- Bosch standard 2A, 230V, smart system
Drivetrain
- Chain
- Shimano LG500, 9/10/11-speed
- Chainring
- FSA, 36T, steel
- Rear derailleur
- Shimano CUES U6000 GS
- Cassette
- Shimano CUES LG300, LINKGLIDE, 11-48, 10-speed
- Shifter
- Shimano U6000, 10-speed
Brakes
- Brake rotor
- Tektro, CentreLock, 203 mm
- Brake
- Tektro HD-M5140 hydraulic disc
Wheels & tyres
- Tyre
- Bontrager Gunnison Elite XR, Tubeless Ready, wire bead, 60 tpi, 27.5x2.40"
Cockpit
- Headset
- 1-1/8'' threadless, sealed cartridge bearings
- Stem
- Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree, 50 mm length
- Saddle
- Bontrager Verse P3, steel rails
- Handlebar
- Bontrager Comp, alloy, 31.8 mm, 40mm rise, 780 mm width
- Grips
- Trek Line Comp, nylon lock-on
- Seatpost
- TranzX JD-YSI34, 100 mm travel, internal routing, 31.6 mm, 350 mm length
Other
- Head set
- FSA IS-2, 1-1/8" top, 1.5" bottom
- Spokes
- 14 g stainless steel, black
- Hub front
- Shimano TC500 alloy, CentreLock, 110x15 mm thru axle
- Crank
- FSA Bosch CK-220, 36T ring, 165 mm length
- Pedal
- VP-536 nylon platform
- Seat collar
- Bolt-on, 36.4 mm
- Hub rear
- Shimano TC500 alloy, CentreLock, 148x12 mm thru axle
- Rim
- Bontrager Kovee, double-wall, Tubeless-Ready, 28-hole, 23 mm width, Presta valve
- Rim
- Bontrager Kovee, double-wall, Tubeless-Ready, 32-hole, 23 mm width, Presta valve
Manufacturer specification — source. Specs and prices can change; check with the brand or your dealer.
Powerfly+ FS geometry
| Size | S | M | L | XL |
|---|---|---|---|---|
| Wheel size | 27.5" | 29" | 29" | 29" |
| Seat tube length | 380 mm | 400 mm | 420 mm | 450 mm |
| Seat tube angle | 71.1° | 71.3° | 71.2° | 72.4° |
| Effective seat tube angle | 77.0° | 77.0° | 77.0° | 77.0° |
| Head tube length | 130 mm | 110 mm | 130 mm | 150 mm |
| Head angle | 65.0° | 66.0° | 66.0° | 66.0° |
| Effective top tube | 563 mm | 595 mm | 630 mm | 654 mm |
| BB height | 330 mm | 335 mm | 335 mm | 335 mm |
| BB drop | 30 mm | 45 mm | 45 mm | 45 mm |
| Chainstay length | 458 mm | 461 mm | 461 mm | 461 mm |
| Fork offset | 44 mm | 44 mm | 44 mm | 44 mm |
| Trail | 123 mm | 125 mm | 125 mm | 125 mm |
| Wheelbase | 1201 mm | 1223 mm | 1257 mm | 1290 mm |
| Standover | 756 mm | 780 mm | 775 mm | 778 mm |
| Reach | 425 mm | 450 mm | 475 mm | 500 mm |
| Stack | 597 mm | 629 mm | 647 mm | 666 mm |
Source: Trek.
Powerfly+ FS: builds compared
Powerfly+ FS range →| Powerfly+ FS 4 Gen 4 | Powerfly+ FS 4 800 Gen 4 | Powerfly+ FS 5 Gen 4 | Powerfly+ FS 6 Gen 4 | Powerfly+ FS 8 Gen 4 | |
|---|---|---|---|---|---|
| Price | £3,500 | £3,700 | £4,000 | £4,500 | £5,250 |
| Frame | Alloy | Alloy | Alloy | Alloy | Alloy |
| Fork | RockShox Recon Silver RL, Solo Air | RockShox Recon Silver, Solo Air spring | RockShox Psylo Silver RC, Motion Control | Fox AWL Rail HD, Rail 2.0 damper | Fox Rhythm 36, Float EVOL air spring |
| Shock | RockShox Deluxe Select R | RockShox Deluxe Select | RockShox Deluxe Select | Fox Float Rhythm | Fox Float Rhythm |
| Derailleur | Shimano CUES U6000 GS | Shimano CUES U6000 GS | Shimano Deore M8200 | SRAM Eagle 70 | Shimano XT Di2 M8260 |
| Brakes | Tektro Gemini SL 4 piston hydraulic brake | Tektro HD-M5140 hydraulic disc | Shimano MT620 hydraulic disc | Shimano XT M8120 4-piston hydraulic disc | Shimano XT M8220 4-piston hydraulic disc |
Powerfly+ FS 4 800 Gen 4: FAQ
How much does the Trek Powerfly+ FS 4 800 Gen 4 cost?
£3,700 (RRP UK, VAT incl.). The Powerfly+ FS range runs from £3,500 (Powerfly+ FS 4 Gen 4) to £5,250 (Powerfly+ FS 8 Gen 4). Prices vary by country and dealer.
What motor and battery does the Trek Powerfly+ FS 4 800 Gen 4 have?
Bosch Performance Line CX (85–120 Nm (Trek figure)). 800 Wh battery — removable (RIB 2.0).
How much suspension travel does the Trek Powerfly+ FS 4 800 Gen 4 have?
130 mm at the fork and 120 mm at the rear, on 29" (S: 27.5") wheels.
What sizes does the Trek Powerfly+ FS 4 800 Gen 4 come in?
S, M, L, XL. Check the geometry table to compare reach and stack between sizes.
What is the difference between the Powerfly+ FS 4 800 Gen 4 and the Powerfly+ FS 5 Gen 4?
They share the Powerfly+ FS frame platform and motor; the differences are in the parts — fork: RockShox Recon Silver vs RockShox Psylo Silver RC; derailleur: Shimano CUES U6000 GS vs Shimano Deore M8200; price: £3,700 vs £4,000.
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