Trek Powerfly FS+ 4 800Wh Gen 4 2026 electric bike image 01

Overview

The Trek Powerfly FS+ 4 800Wh Gen 4 is a capable mountain bike built for trail riding, offering strong motor support and reliable braking for off-road adventures. Its high-capacity battery provides good range for most trips, and the removable battery adds convenience for charging and storage. However, the charging time is notably slow, and the bike's weight may make it less easy to lift or maneuver in tight spaces. While the motor delivers strong assistance, the power delivery can feel a bit abrupt in certain situations, which might require some adjustment for riders used to smoother e-bike performance.

Where to buy

Compared with similar mountain bike e-bikes on Bikkerr, this model sits £1,115.35 below average

Lowest price now: £4,150.00 Best price ever seen: £4,150.00 Prices update every ~24 hours
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Trek Powerfly FS+ 4 800Wh Gen 4
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Trek Powerfly FS+ 4 800Wh 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 Purion 200

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Lights Included

No

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Weight (inc battery): 24.58 kg

The website average for electric bikes is 24.55 kg. This electric bike is 0.02 kg over 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 TLR 30, Tubeless Ready, 28-hole, Presta valve

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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

Shimano CUES U6000 10-speed

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Drivechain type

Chain drive

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Shifters

Shimano CUES U 6000, 10-speed

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Amount of gears

10 Gears

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Rear Derailleur

Shimano CUES U 6000 GS

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Front Derailleur

N/A

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Cassette

Shimano CUES LG 300, Linkglide, 11-48 T, 10-speed

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Cranks

FSA Bosch CK-220, 165 mm length

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Chain

Shimano LG 500 (Linkglide)

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Bottom Bracket

Integrated within the Bosch Performance Line CX motor unit

Brakes

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Brakes

Tektro Gemini SL 4-piston hydraulic disc brakes with 203 mm CentreLock rotors

Hydraulic Disc Brake

Brake Type: Hydraulic Disc Brake

Hydraulic operated discs brakes (Very good)

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Brake Rotors

4-piston hydraulic disc

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Shifters

Shimano CUES U 6000, 10-speed

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+ 4 800W is a full-power full suspension electric mountain bike for taking on alpine adventures. Its powerful Bosch motor gives you a boost for soaring up climbs, while a massive 800 Wh battery keeps you going through your longest adventures. A RockShox suspension package (120 mm rear, 130 mm front) smooths out rough trails, while a 10-speed Shimano CUES drivetrain delivers clean-shifts for any kind of trail. - The Powerfly FS+ giv ... Read More