Trek Powerfly FS+ 6 Gen 4 Electric Mountain Bike - White

Name: Trek Powerfly FS+ 6 Gen 4 Electric Mountain Bike - White
Brand: Trek
SKU: j37v7syv2c
Availability: InStock

The Powerfly FS+ 6 is a full-power full suspension electric mountain bike built to explore beyond ...

Best current price£3,999.00from Team Cycles

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Trek Unisex Black Powerfly Fs+ 6 Gen 4 800Wh Full Suspension Electric Mountain Bike Gloss Dark Star And Matte Dark Web

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Team CyclesTrek Unisex Black Powerfly Fs+ 6 Gen 4 800Wh Full Suspension Electric Mountain Bike Gloss Dark Star And Matte Dark Web

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TredzTrek Gloss Dark Star/Matte Dark Web Powerfly Fs+ Gen 4 Size 6

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Evans Cycles UKTrek Powerfly Fs+ 6 Gen 4 2026 Electric Mountain Bike Medium Black

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Product Information

Full details

The Trek Powerfly FS+ 6 Gen 4 is a full-power, full-suspension electric mountain bike designed for adventurous riders eager to tackle challenging off-road terrain. Its key benefit is the powerful Bosch motor combined with a capable suspension system for a smooth and exhilarating ride. A potential caveat for some users might be its focus on off-road performance, which may make it less ideal for pure commuting or paved surfaces. This e-bike features an Alpha Platinum Aluminium frame, a FOX suspension package for absorbing trail impacts, a 12-speed Shimano drivetrain for versatile gearing, and robust hydraulic disc brakes for reliable stopping power.

All features

Model Part Number	5329739
Brand	Trek

Extended Product Information

FAQs

What is the maximum assist speed for the motor?

The Bosch Performance Line CX motor provides assistance up to 20 mph (32 km/h) in the US, and up to 25 km/h in EU and APAC regions.

What is the battery capacity?

The bike is equipped with a large 800 Wh Bosch Power Tube battery, offering extended range for longer rides.

How much suspension travel does the bike have?

The bike features 130 mm of travel in the front fork (Fox AWL Rail HD) and 120 mm of travel in the rear shock (Fox Float Rhythm).

What type of brakes does it use?

It uses powerful Shimano 4-piston hydraulic disc brakes, specifically M6100 levers and M6120 calipers, for reliable stopping power.

Does the bike come with a dropper seatpost?

Yes, it comes with a Bontrager Line Dropper seatpost with 170 mm of travel.

Can I fit racks or mudguards?

Yes, the frame includes mounts for both racks and mudguards, allowing for added utility.

How do I find the right size bike?

Please refer to the sizing chart provided in the product information, which correlates rider height and inseam to recommended frame sizes (S, M, L, XL).

Troubleshooting

Motor not providing assistance

Check that the battery is correctly inserted and charged. Ensure the system is turned on and the speed sensor is properly aligned and clean. Consult the Bosch eBike Flow app for error codes or further diagnostics.

Brakes feel weak or spongy

Brakes may require bleeding. Check the brake pads for wear. Ensure the brake rotors are clean and free from contaminants. Seek professional adjustment if the issue persists.

Suspension feels harsh or unresponsive

Verify that the suspension is set to the correct sag for your weight. Check for any obstructions or damage to the fork or shock stanchions. Ensure the rebound and compression settings are appropriate for the trail conditions.

Gears are skipping or not shifting smoothly

Check the derailleur hanger for bends. Ensure the derailleur cable is clean and properly tensioned. Consult a mechanic for a full gear tune-up if needed.

Battery not charging

Ensure the charger is plugged in correctly and the outlet is functional. Clean the battery contacts and charger pins. Try a different compatible charger if available.

Pros and Cons

Pros

Powerful Bosch motor for excellent climbing and acceleration.
Full suspension system provides a comfortable and controlled ride on rough trails.
Long-lasting 800 Wh battery for extended adventures.
Reliable Shimano XT/SLX 12-speed drivetrain.
Strong and responsive Shimano 4-piston hydraulic disc brakes.
Durable Alpha Platinum Aluminium frame built for off-road use.

Cons

Full suspension and e-bike components add significant weight.
Geometry is optimized for off-road, potentially less efficient on pavement.
Higher price point characteristic of high-performance e-MTBs.
Requires specific knowledge for maintenance of the e-system components.

Setup, Compatibility & Care

Initial Setup: Upon receiving the bike, it is recommended to have it assembled and inspected by a qualified bicycle mechanic. This ensures all components are correctly fitted and adjusted, especially the brakes, gears, and the Bosch e-system. Ensure the battery is fully charged before your first ride.

Compatibility: The bike is designed around the Bosch Smart System, utilizing a Bosch Purion 200 controller and an 800 Wh Power Tube battery. It features standard Boost 148 rear and Boost 110 front hub spacing. The frame includes mounts for racks and mudguards, offering some versatility beyond pure trail riding. It uses a UDH (Universal Derailleur Hanger) for easy replacement. The frame is compatible with a 31.6 mm seatpost, and it comes with a 170mm dropper post. Ensure any accessories or replacement parts are compatible with these standards.

Care: Regular cleaning of the frame and drivetrain is essential. Pay special attention to keeping the motor and battery contacts clean and dry. After riding in wet or muddy conditions, clean the bike thoroughly, paying attention to the suspension pivots and brake calipers. The Bosch system components should be checked for firmware updates periodically via the Bosch eBike Flow app. Store the bike and battery in a dry, moderate temperature environment. Refer to the Bosch manual for specific e-system care instructions.