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2026 Trek

Powerfly FS+ 4

A 27.5″ / 29″ aluminum frame full suspension trail e-bike with mid-range components.
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Manufacturer Price

$4,899
Weight54.2 lbs  
FrameAluminum
SuspensionFull, 120 / 130mm
ForkRockShox Recon Silver RL
ShockRockShox Deluxe Select
Wheels27.5″ / 29″ Aluminum
Drivetrain1 × 10
GroupsetCUES
MotorBosch 600W 85Nm mid-drive
BatteryBosch 600Wh
BrakesTektro Gemini Hydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Powerfly FS+ 4
Other Trail bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

28 mph

Powerfly FS+ 4

26 mph

Similar Bikes

Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Compare the full Powerfly model range

View Comparison
Sizing
15.5"

5'1" – 5'6"

17.5"

5'4" – 5'11"

19.5"

5'8" – 6'3"

21.5"

6'1" – 6'5"

Rider Fit Notes

None yet.

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Geometry
Specs
Build
Frame

Alpha Platinum Aluminum, Removable Integrated Battery (RIB 2.0), tapered headtube, guided internal routing, Motor Armor, angle-adjust headset, Mino Link adjustable geometry, adjustable leverage rate, 34.9mm seat tube, ABP, UDH, rack and mudguard mounts, Boost 148, 120 mm travel

BB StandardBosch, Press Fit

Hanger StandardUDH

Tire Clearance2.5"

ColorsMercury / Dark Web; Pennyflake / Black Olive

Fork

RockShox Recon Silver RL, Solo Air, Motion Control damper, lockout, tapered steerer, 42mm offset, Boost110, 15mm Maxle Stealth, 130mm travel

Travel130mm

Spring TypeAir

Shock

RockShox Deluxe Select R, 210x50mm

Travel120mm

Bottom Bracket

Bosch, press-fit

Headset

FSA IS-2, 1-1/8" top, 1.5" bottom

Stem

Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 50mm length

Handlebar

Bontrager Comp, alloy, 31.8mm, 40mm rise, 780mm width

Saddle

Bontrager Verse P3, steel rails

Seatpost

Size: S, Bontrager Line Dropper, 100mm travel, MaxFlow, internal routing, 31.6mm, 310mm length; Size: M, L, XL, Bontrager Line Dropper, 170mm travel, MaxFlow, internal routing, 31.6mm, 450mm length

TypeDropper

Pedals

VP-536 nylon platform

Grips

Bontrager XR Trail Comp, nylon lock-on

Groupset
Rear Derailleur

Shimano CUES U6000 GS

Crank

FSA Bosch CK-220, 36T ring, 165mm length

Shifters

Shimano U6000, 10 speed

Cassette

Shimano CUES LG300, LINKGLIDE, 11-48, 10 speed

Chain

Shimano LG500, 9/10/11 speed

Brakes

Tektro Gemini SL 4 piston hydraulic brake

TypeTektro Gemini Hydraulic Disc

Wheels
Rims

Size: S, M, L, XL, Bontrager Line TLR 30, Tubeless Ready, 28-hole, Presta valve; Size: S, M, L, XL, Bontrager Line TLR 30, Tubeless Ready, 32-hole, Presta valve

Front Hub

Shimano TC500 alloy, centerlock, 110x15mm thru axle

Rear Hub

Shimano TC500 alloy, centerlock, 148x12mm thru axle

Tires

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"

Disc Rotors

Tektro, centerlock, 203mm

Electric Components
Motor

Bosch Performance Line CX, 20 mph / 32 km/h max assist (25 km/h max assist in EU and APAC)

Battery

Bosch PowerTube 600Wh, smart system

Display

Bosch Purion 200

Charger

Bosch standard 2A, 110V, smart system

Rider Notes
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First added July 1

Last updated July 12

Not listed for 321 days