Trek Powerfly FS+ 4 Electric Mountain Bike - Grey

The Powerfly FS+ 4 is a full-power full suspension electric mountain bike for taking on alpine adv...

Best current price£3,500.00from Evans Cycles UK

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Product Information

Full details

The Trek Powerfly FS+ 4 is a full-suspension electric mountain bike designed for riders tackling alpine terrain. Its key benefit is providing powerful assistance for climbs and confident comfort on descents, with a large battery for extended range. A potential caveat is the bike's weight, typical of full-power e-MTBs, which may affect handling on technical trails for some riders. Key features include a robust Alpha Platinum Aluminium frame, Rock Shox suspension, a reliable Shimano drivetrain, and powerful Tektro hydraulic disc brakes.

All features

Model Part Number5329713
BrandTrek

Extended Product Information

FAQs

What is the range of the 600 Wh battery?

The range varies significantly based on terrain, rider weight, assist level, and pedaling effort. Bosch estimates can range from 30 to over 100 miles (50 to 160 km) on a single charge for a 600 Wh battery under optimal conditions.

How do I customize the motor power using the eBike Flow app?

Connect your bike to the eBike Flow app via Bluetooth. Navigate to the 'Settings' or 'Performance' section within the app to adjust parameters like maximum torque and peak power within the available limits.

Can I ride this bike in the rain?

Yes, the Powerfly FS+ 4 is designed to be ridden in various weather conditions. However, it's advisable to clean and dry the bike after riding in wet conditions, paying special attention to the drivetrain and electrical components.

What is the maximum torque output of the Bosch motor?

The Bosch Performance Line CX motor typically offers up to 85 Nm of torque. With the eBike Flow app, you can increase this to 100 Nm in certain modes for enhanced climbing power.

How do I remove the integrated battery?

Locate the battery release mechanism, usually found near the battery housing on the frame. Follow the instructions on the Purion 200 remote or consult the Bosch manual for the precise steps to safely remove the RIB 2.0 battery.

What is the difference between the standard 600 Wh battery and the optional 800 Wh battery?

The 800 Wh battery offers a larger capacity, providing an extended range compared to the standard 600 Wh battery. This allows for longer rides or riding with higher assist levels for greater distances.

Is this bike suitable for commuting?

While primarily designed for off-road trails, the Powerfly FS+ 4 can be used for commuting, especially if your route involves rough terrain or significant hills. However, its full suspension and knobby tires might be less efficient on smooth pavement compared to a hybrid or city e-bike.

Troubleshooting

Motor not providing assistance

Ensure the battery is charged and correctly inserted. Check that the bike is in an assist mode and that the speed sensor is clean and aligned. Consult the Bosch manual or a dealer if the issue persists.

Battery not charging

Verify the charger is properly plugged in at both ends. Clean the battery contacts and charger port. Try a different power outlet. If the problem continues, contact customer support or a dealer.

Display or remote not working

Check the connection between the remote and the main unit. Ensure the battery has sufficient charge. Restart the system. If it fails to power on, seek professional assistance.

Shifting is rough or inaccurate

Inspect the derailleur and shifter cables for damage or tension issues. Ensure the rear derailleur hanger is straight. Clean and lubricate the chain and cassette. Adjustments may be needed by a qualified mechanic.

Brakes are squealing or weak

Clean the brake rotors and pads with a degreaser. Check for pad wear and replace if necessary. Ensure the brake system is properly bled if air is suspected in the lines.

Pros and Cons

Pros

  • Powerful Bosch motor provides significant assistance on climbs.
  • Full suspension smooths out rough trails and improves control on descents.
  • Large battery capacity offers excellent range for long rides.
  • Adjustable geometry allows for personalized handling.
  • Integrated design with removable battery is user-friendly.
  • Bosch e-Bike Flow app offers performance customization and connectivity.

Cons

  • Heavier than a non-electric or hardtail mountain bike due to motor and battery.
  • Full suspension and e-bike components add complexity for maintenance.
  • Price point may be a barrier for some consumers.
  • Requires specific charging equipment for the Bosch battery.
  • Dependence on electronic systems for full functionality and customization.

Setup, Compatibility & Care

Initial Setup:

Upon receiving the Powerfly FS+ 4, it's recommended to have it assembled and inspected by a qualified bicycle mechanic. Ensure the tires are set up tubeless-ready if desired. The battery should be fully charged before the first ride. Familiarize yourself with the Purion 200 remote and the Bosch e-Bike Flow app for initial setup and customization.

Compatibility:

  • Battery: Compatible with Bosch PowerMore booster batteries and an optional 800 Wh battery upgrade.
  • Wheels: Bontrager Line TLR 30 rims are Tubeless-Ready.
  • Drivetrain: Features UDH (Universal Derailleur Hanger) for potential future compatibility with different derailleur systems.
  • Accessories: Mounts for racks and mudguards are included.

Care and Maintenance:

  • Cleaning: Clean the frame and components regularly with mild soap and water. Avoid high-pressure washers, especially near bearings and the motor.
  • Battery Care: Store the battery in a cool, dry place, ideally with a charge between 30-60% if stored for extended periods. Refer to the Bosch manual for detailed battery care instructions.
  • Drivetrain: Keep the chain clean and lubricated. The 10-speed Shimano CUES drivetrain is designed for low maintenance, but regular cleaning will ensure optimal performance.
  • Suspension: Follow Rock Shox recommendations for suspension service intervals. Regularly wipe down fork stanchions and rear shock.
  • Brakes: Inspect brake pads and rotors regularly. Ensure hydraulic lines are free of leaks.
  • Software Updates: Keep the Bosch eBike system firmware and the eBike Flow app updated for the latest features and performance improvements.

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