Trek Powerfly FS+ 8 Gen 4 2026 electric bike image 01

Overview

The Trek Powerfly FS+ 8 Gen 4 is a capable mountain bike designed for off-road trails, offering strong motor support and confident braking for varied terrain. With a high-capacity battery and removable design, it provides flexibility for charging and storage, though the charging time is notably slower than average. The bike feels lively for its weight, but its range is modest, which may require planning for longer rides. Hydraulic disc brakes ensure reliable stopping power, and the torque sensor contributes to a smooth, responsive ride, though the power delivery can feel slightly inconsistent in certain conditions.

Where to buy

Compared with similar mountain bike e-bikes on Bikkerr, this model sits £734.65 above average

Lowest price now: £6,000.00 Best price ever seen: £6,000.00 Prices update every ~24 hours
Best deal
£6,000.00
Trek
Trek Powerfly FS+ 8 Gen 4
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eBike Overview

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eBike Type: Mountain Bike

The style of riding intended for this bike

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Released: 2026

The bike was released this year

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Screen

Bosch Kiox 300, smart system

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Lights Included

No

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Weight (inc battery): 24.48 kg

The website average for electric bikes is 24.55 kg. This electric bike is 0.08 kg under the average. Total bike weight may vary depending on frame size.

Esystem & Battery

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Motor Name

Bosch Performance Line CX (Gen 5)

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Motor Power

600 watts

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Motor Torque

85 N.m

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Sensor Type

Torque Sensor

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Battery Capacity

800 wh

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Claimed Max Range

55 miles (88.5 km)

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Charge Time

6h 0m

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Removable Battery

Yes

Sizing & Geometry

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Min / Max Rider Height

XS | S 155–165 cm (5′1″–5′5″) | M 165–176 cm (5′5″–5′9″) | L 177–188 cm (5′10″–6′2″) | XL 188–195 cm (6′2″–6′5″)

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Adjustable Sizing

Adjustable saddle height

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Folded Dimensions

n/a

Wheel & Tire Details

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Wheelset Name

Bontrager Line Comp 30, Tubeless Ready

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Wheelset Size

29 inch

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Tires

Bontrager Gunnison Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.40"

Frame Info

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Frame Material

Aluminium

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Suspension Type

Front and Rear suspension

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Foldable Frame

No

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Max Payload

136 kg (299.8 lbs)

Drivechain Details

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Groupset details

SRAM GX Eagle AXS T-Type 12-speed

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Drivechain type

Chain drive

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Shifters

SRAM AXS POD

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Amount of gears

12 Gears

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Rear Derailleur

SRAM GX Eagle AXS, T-Type

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Front Derailleur

None

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Cassette

SRAM XS-1275, T-Type, 10-52, 12-speed

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Cranks

SRAM GX, 160 mm length

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Chain

SRAM GX Eagle, T-Type, 12-speed

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Bottom Bracket

Integrated within the Bosch Performance Line CX motor system

Brakes

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Brakes

SRAM DB8 4-piston hydraulic disc brakes

Hydraulic Disc Brake

Brake Type: Hydraulic Disc Brake

Hydraulic operated discs brakes (Very good)

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Brake Rotors

203 mm rotors

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Shifters

SRAM AXS POD

Other Components

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Saddle

Unknown

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Handlebars

Unknown

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Bar Tape

Unknown

Manufactures Info

Worldwide Shipping: Yes

Delivery across the globe!

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Warranty: 2 Years

Limited warranty website average: 3.12 years

The Powerfly FS+ 8 Gen 4 by TREK delivers superior performance and the latest e-bike tech in one sleek package. This full-power, full-suspension electric mountain bike ensures you are ready for any adventure. It equips a robust aluminium frame with ample travel to take the sting out of challenging trails, boasting 130mm front and 120mm rear suspension. This beauty is all about unlimited exploration, which is why it brings together a potent Bosch ... Read More