Trek Powerfly FS+ 4 Equipped Gen 4 Electric Mountain Bike - Grey
The Powerfly FS+ 4 Equipped is a full-power full suspension electric mountain bike for taking on a...The Powerfly FS+ 4 Equipped is a full-power full suspension electric mountain bike for taking on alpine adventures. Its Alpha Platinum Aluminium frame pairs with a Rock Shox Deluxe suspension package (120 mm rear, 130 mm front) to smooth out rough trails, while a 10-speed Shimano CUES drivetrain provides simple, low maintenance shifting. Tektro Gemini SL 4-piston hydraulic disc brakes give you stopping power at a great value. Plus, it comes equipped for adventure with lights, mudguards, a MIK-compatible rack and a kickstand. Key Features The Powerfly FS+ gives you the powerful boost you crave on high alpine climbs, confident comfort on descents and a big battery for getting far out there Bosch's Performance Line CX motor delivers plenty of torque for steep, punchy climbs and is easy to control with the Purion 200 remote – plus you can customise it in the eBike Flow app Its RIB 2. 0 removable integrated battery is easy to remove for travel and storage, and its virtually rattle-free while you ride Want even more boost? With the Bosch e-Bike Flow app, you can increase torque to 100 Nm and peak power up to 750W. It's compatible with Bosch Power More booster batteries, and you can even upgrade the 600 Wh battery for a bigger 800 Wh option to get way out there. Both parts can be retrofitted by the dealer Specifications Frameset Frame: Alpha Platinum Aluminium, Removable Integrated Battery (RIB 2. 0), tapered headtube, guided internal routing, Motor Armor, angle-adjust headset, Mino Link adjustable geometry, adjustable leverage rate, 34. 9 mm seat tube, ABP, UDH, rack and mudguard mounts, Boost 148, 120 mm travel Fork: Rock Shox Recon Silver, Solo Air spring, Motion Control damper, lockout, tapered steerer, 42 mm offset, Boost110, Maxle Stealth, mudguard mounts, 130 mm travel Rear Shock: Rock Shox Deluxe Select R, 210x50 mm Wheels Rims: Bontrager Line TLR 30, Tubeless-Ready, 28-hole, Presta valve Tyres: Bontrager Gunnison Pro XR, Tubeless Ready, dual compound, ar
Trek Unisex Orange Powerfly Fs+ 4 Equipped Gen 4 600Wh Full Suspension Electric Mountain Bike Pennyflake And Black OliveFree delivery in 1–3 days£3,750.00Visit shop →
Trek Unisex Grey Powerfly Fs+ 4 Equipped Gen 4 600Wh Full Suspension Electric Mountain Bike Mercury And Dark WebFree delivery in 1–3 days£3,750.00Visit shop →
Trek Unisex Orange Powerfly Fs+ 4 Equipped Gen 4 600Wh Full Suspension Electric Mountain Bike Pennyflake And Black OliveFree delivery in 1–3 days£3,750.00Visit shop →
Trek Unisex Grey Powerfly Fs+ 4 Equipped Gen 4 600Wh Full Suspension Electric Mountain Bike Mercury And Dark WebFree delivery in 1–3 days£3,750.00Visit shop →
Trek Unisex Grey Powerfly Fs+ 4 Equipped Gen 4 600Wh Full Suspension Electric Mountain Bike Mercury And Dark WebFree delivery in 1–3 days£3,750.00Visit shop →
Trek Unisex Orange Powerfly Fs+ 4 Equipped Gen 4 600Wh Full Suspension Electric Mountain Bike Pennyflake And Black OliveFree delivery in 1–3 days£3,750.00Visit shop →
Trek Unisex Orange Powerfly Fs+ 4 Equipped Gen 4 600Wh Full Suspension Electric Mountain Bike Pennyflake And Black OliveFree delivery in 1–3 days£3,750.00Visit shop →
Evans Cycles UKTrek Powerfly Fs+ 4 Equipped Gen 4 2025 Electric Mountain Bike Medium Orange
Trek Powerfly Fs+ 4 Equipped Gen 4 2025 Electric Mountain Bike Medium Grey£4.99 delivery£3,750.00Visit shop →
Product Information
Full details
The Trek Powerfly FS+ 4 Equipped Gen 4 is a full-suspension electric mountain bike designed for tackling challenging alpine terrain, offering powerful assistance on climbs and robust suspension for descents. Its key benefit is the combination of a capable full-suspension design with integrated e-bike technology, allowing riders to explore further and conquer steeper ascents. A potential caveat is that advanced customization features require the use of the Bosch e-Bike Flow app.
All features
Model Part Number
5329730
Brand
Trek
Extended Product Information
FAQs
What is the range of the 600 Wh battery?
The range depends heavily on factors like rider weight, terrain, assist level, and weather conditions. Bosch generally estimates ranges of 40-100 miles (60-160 km) for a 600 Wh battery under typical conditions.
Can I use the bike in wet conditions?
Yes, the bike is equipped with mudguards and a sealed motor system, making it suitable for riding in wet weather. However, avoid deep submersion and clean the bike thoroughly after riding in wet or muddy conditions.
How do I remove the battery?
The RIB 2.0 battery can be removed by unlocking it with the provided key and then gently pulling it out from the frame. Ensure the bike is stable when removing the battery.
What is the Bosch e-Bike Flow app used for?
The app allows you to customize motor performance (e.g., increase torque or peak power), track your rides, update the system's firmware, and receive diagnostic information.
Can I upgrade to a larger battery?
Yes, the bike is compatible with an optional 800 Wh battery, which can be retrofitted by a dealer to significantly extend your riding range.
What is the warranty on the bike and motor system?
Trek typically offers a limited lifetime warranty on frames and a standard warranty on components and the electric system. Specific warranty details for the Bosch motor and battery should be confirmed with your dealer or Trek's official warranty documentation.
Is this bike suitable for commuting?
Yes, with its integrated lights, mudguards, rack, and comfortable full-suspension ride, it is well-suited for commuting, especially if your route involves varied or rough terrain.
Troubleshooting
Motor not providing assist
Check that the battery is installed correctly and sufficiently charged. Ensure the speed sensor is clean and properly aligned. Verify that the system is turned on and not in 'walk assist' mode. Consult the Bosch eBike Flow app for error codes.
Battery not charging
Ensure the charger is properly connected to the battery and a working power outlet. Check the charging contacts on both the battery and the charger for dirt or damage. Try a different outlet.
Brakes feel weak or spongy
Check the brake pads for wear. Ensure the brake rotors are clean and free from contaminants. If the issue persists, the hydraulic system may require bleeding, which should be performed by a qualified bike mechanic.
Chain skipping or shifting poorly
Inspect the derailleur hanger for bends. Check the chain for wear or damage. Adjust the shifting cable tension or have the derailleur indexed by a professional.
Suspension feels stiff or unresponsive
Ensure suspension lockouts are disengaged. Check tire pressure, as it can affect overall ride feel. For persistent issues, the suspension may require servicing. Consult Rock Shox documentation or a mechanic.
Pros and Cons
Pros
Excellent climbing capability with powerful motor assistance.
Comfortable and controlled ride on challenging terrain due to full suspension.
Versatile for both trail riding and utility use with included accessories.
Customizable ride characteristics through the Bosch e-Bike Flow app.
Reliable components for a smooth and low-maintenance experience.
Cons
Advanced features and customization require smartphone app usage.
Battery upgrade and booster compatibility might involve additional costs.
Full suspension adds weight compared to hardtail e-bikes.
Requires compatible charging infrastructure for the Bosch system.
Setup, Compatibility & Care
Initial Setup: Upon receiving the bike, ensure the wheels, handlebars, and pedals are securely attached. Inflate tires to the recommended pressure, typically indicated on the tire sidewall. Charge the 600 Wh RIB 2.0 battery fully before your first ride. For advanced features, download the Bosch e-Bike Flow app and pair your bike via Bluetooth.
Compatibility: The bike uses standard Boost 148 spacing for the rear hub and a Boost110 spaced fork. It features UDH compatibility for derailleur hangers. The MIK system on the rear rack allows for compatible accessories to be attached easily. The battery is compatible with Bosch Power More booster batteries and can be upgraded to an 800 Wh option (dealer retrofitting required).
Care and Maintenance:
Cleaning: Clean the frame and components with mild soap and water using a soft cloth or sponge. Avoid high-pressure washers, especially around bearings and electrical components.
Drivetrain: Regularly clean and lubricate the chain. Check for wear on the cassette and chainrings. The 10-speed Shimano CUES drivetrain is designed for durability and low maintenance.
Brakes: Inspect brake pads for wear and ensure rotors are clean. Hydraulic disc brakes typically require minimal adjustment but may need bleeding by a qualified mechanic if performance degrades.
Suspension: Keep fork and shock stanchions clean and free of debris. Refer to Rock Shox's documentation for specific service intervals and recommendations.
Battery: Store the battery in a cool, dry place and avoid extreme temperatures. Charge regularly, even during storage, to maintain battery health. Ensure the battery contacts are clean.