Trek Powerfly+ FS 6 Gen 4 e-MTB, side view
Photo: Trek
Full-power eMTBTrail / Adventure
Powerfly+ FS range · 5 builds

TrekPowerfly+ FS 6 Gen 4

£4,500RRP UK, VAT incl.
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 6 Gen 4 (£4,500) is a mid-range build of the Powerfly+ FS: alloy frame, Bosch Performance Line CX motor with 800 Wh, Fox AWL Rail HD fork, Fox Float Rhythm shock, SRAM Eagle 70 and Shimano XT M8120 4-piston 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
Fox Float Rhythm, 2-position damper, 210x50 mm
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
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

E-system

Battery
Bosch PowerTube 800 Wh, smart system
Charger
Bosch standard 2A, 230V, smart system

Drivetrain

Chain
SRAM Eagle 70, T-Type, 12-speed
Rear derailleur
SRAM Eagle 70, T-Type
Cassette
SRAM Eagle XS-1270, T-Type,10-52, 12-speed
Shifter
SRAM Eagle 70, 12-speed

Brakes

Brake rotor
Shimano RT64, CentreLock, 203 mm
Brake
Shimano XT M8120 4-piston hydraulic disc
Brake
Shimano MT620 hydraulic disc

Wheels & tyres

Skewer rear
Bontrager Switch thru axle, removable lever
Tyre
Bontrager Gunnison Pro XR, Tubeless-Ready, wire bead, 60 tpi, 27.5x2.40"

Cockpit

Headset
1-1/8'' threadless, sealed cartridge bearings
Stem
Bontrager Rhythm Comp, 31.8 mm, 0-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
Bontrager Line Dropper, 100mm travel, MaxFlow, internal routing, 31.6 mm, 310 mm length

Other

Head set
FSA IS-2, 1-1/8" top, 1.5" bottom
Spokes
14 g stainless steel, black
Spokes
14g stainless
Hub front
Shimano TC500 alloy, CentreLock, 110x15 mm thru axle
Crank
FSA alloy, 160 mm length
Pedal
VP-536 nylon platform
Seat collar
Bolt-on, 36.4 mm
Hub rear
Shimano TC500 alloy, CentreLock, 148x12 mm thru axle
Mudguard
Trek custom mudguard
Rim
Bontrager Line TLR 30, Tubeless-Ready, 32-hole, Presta valve
Rim
Bontrager Line TLR 30, Tubeless-Ready, 28-hole, Presta valve

Manufacturer specification — source. Specs and prices can change; check with the brand or your dealer.

Powerfly+ FS geometry

SizeSMLXL
Wheel size27.5"29"29"29"
Seat tube length380 mm400 mm420 mm450 mm
Seat tube angle71.1°71.3°71.2°72.4°
Effective seat tube angle77.0°77.0°77.0°77.0°
Head tube length130 mm110 mm130 mm150 mm
Head angle65.0°66.0°66.0°66.0°
Effective top tube563 mm595 mm630 mm654 mm
BB height330 mm335 mm335 mm335 mm
BB drop30 mm45 mm45 mm45 mm
Chainstay length458 mm461 mm461 mm461 mm
Fork offset44 mm44 mm44 mm44 mm
Trail123 mm125 mm125 mm125 mm
Wheelbase1201 mm1223 mm1257 mm1290 mm
Standover756 mm780 mm775 mm778 mm
Reach425 mm450 mm475 mm500 mm
Stack597 mm629 mm647 mm666 mm

Source: Trek.

Powerfly+ FS: builds compared

Powerfly+ FS range →
Powerfly+ FS 4 Gen 4Powerfly+ FS 4 800 Gen 4Powerfly+ FS 5 Gen 4Powerfly+ FS 6 Gen 4Powerfly+ FS 8 Gen 4
Price£3,500£3,700£4,000£4,500£5,250
FrameAlloyAlloyAlloyAlloyAlloy
ForkRockShox Recon Silver RL, Solo AirRockShox Recon Silver, Solo Air springRockShox Psylo Silver RC, Motion ControlFox AWL Rail HD, Rail 2.0 damperFox Rhythm 36, Float EVOL air spring
ShockRockShox Deluxe Select RRockShox Deluxe SelectRockShox Deluxe SelectFox Float RhythmFox Float Rhythm
DerailleurShimano CUES U6000 GSShimano CUES U6000 GSShimano Deore M8200SRAM Eagle 70Shimano XT Di2 M8260
BrakesTektro Gemini SL 4 piston hydraulic brakeTektro HD-M5140 hydraulic discShimano MT620 hydraulic discShimano XT M8120 4-piston hydraulic discShimano XT M8220 4-piston hydraulic disc

Powerfly+ FS 6 Gen 4: FAQ

How much does the Trek Powerfly+ FS 6 Gen 4 cost?

£4,500 (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 6 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 6 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 6 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 6 Gen 4 and the Powerfly+ FS 8 Gen 4?

They share the Powerfly+ FS frame platform and motor; the differences are in the parts — fork: Fox AWL Rail HD vs Fox Rhythm 36; derailleur: SRAM Eagle 70 vs Shimano XT Di2 M8260; price: £4,500 vs £5,250.

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