Trek Fuel+ EX 5 Gen 2 Electric Mountain Bike - Purple

The Fuel+ EX 5 is a quiet and capable electric mountain bike that's up for any trail, at any time....

Best current price£3,499.00from Team Cycles

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Team CyclesTrek Unisex Black Fuel+ Ex 5 Gen 2 580Wh Electric Full Suspension Mountain Bike And Purple Flip Splatter
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£3,499.00
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Evans Cycles UKTrek Fuel+ Ex 5 Gen 2 2026 Electric Mountain Bike Large Green
£4.99 delivery
£3,959.00
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TredzTrek Matte Olive Grey/Trek Black Fuel+ Ex Gen 2 Size 5
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£4,400.00
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Product Information

Full details

The Trek Fuel+ EX 5 Gen 2 is designed for adventurous riders seeking a capable and quiet electric mountain bike experience on any trail, at any time. Its key benefit lies in the smooth, boosted ride provided by the compact TQ motor and the confidence-inspiring suspension setup. A potential caveat for some riders might be the integrated battery design, which requires specific procedures for removal and charging.

All features

Model Part Number5335684
BrandTrek

Extended Product Information

FAQs

How do I remove the battery for charging?

The TQ battery is integrated into the frame. Refer to the specific TQ system manual for detailed instructions on battery removal, which typically involves accessing a port and using a specific tool or procedure to release the battery.

What is the range of the TQ 580Wh battery?

The range can vary significantly based on factors like rider weight, terrain, assist level, and pedaling effort. However, the 580Wh battery is designed to provide ample range for extended trail rides.

Can I use other chargers with the TQ battery?

It is strongly recommended to only use the TQ-specific charger provided with the bike to ensure proper charging and prevent damage to the battery or charging system.

What tire pressure should I use?

Recommended tire pressure depends on rider weight, tire model, and trail conditions. A good starting point for the Bontrager Gunnison Elite XR 2.40" tires is typically between 20-30 PSI, but it's best to experiment for optimal grip and comfort. Check tire sidewall for maximum pressure.

How much travel does the suspension have?

The bike features 150 mm of travel at the front fork and 145 mm of travel at the rear shock.

Is this bike suitable for beginners?

Yes, the e-assist and capable suspension make it accessible for beginners looking to tackle trails. However, a basic understanding of mountain biking techniques and e-bike operation is advised.

What is the warranty on the Trek Fuel+ EX 5?

Trek typically offers a limited lifetime warranty on the frame and a one-year warranty on components and the e-bike system (motor, battery, controller). Please refer to the official Trek warranty documentation for precise details.

Troubleshooting

Motor not providing assistance

Ensure the battery is charged and properly seated. Check that the system is powered on and that no error codes are displayed on the TQ LED display. Verify that the speed sensor is clean and aligned correctly.

Brakes feel weak or spongy

Check the brake fluid level and inspect for leaks. The brakes may require bleeding if air has entered the system. Ensure the brake pads are not worn out and the rotors are clean.

Shifting is imprecise or noisy

Inspect the rear derailleur for any damage or misalignment. Adjust the derailleur hanger if necessary. Ensure the gear cable is not frayed and is properly tensioned. Lubricate the chain.

Suspension feels harsh or bottoms out easily

Check and adjust the suspension sag according to your weight and riding style. Ensure the rebound and compression settings are appropriate for the terrain. Service the suspension if it hasn't been done recently.

Pros and Cons

Pros

  • Quiet and smooth motor operation for a natural riding feel.
  • Capable suspension with ample travel for trail riding.
  • Reliable Shimano Deore drivetrain for efficient gear changes.
  • Powerful 4-piston hydraulic brakes offer excellent stopping control.
  • Durable Alpha Platinum Aluminium frame built for trail abuse.

Cons

  • Integrated battery may complicate removal for charging or replacement.
  • TQ motor, while quiet, might offer less peak power than some competitors.
  • Wire bead tires are less suited for tubeless setups requiring specific sealant and rim tape.
  • Specific sizing recommendations are important for optimal fit and performance.

Setup, Compatibility & Care

Initial Setup: Upon receiving the bike, ensure all components are securely fastened. It is highly recommended to have the bike assembled and inspected by a qualified bicycle mechanic before the first ride. This includes checking tire pressure, brake function, suspension sag, and drivetrain adjustments.

Compatibility: The bike utilizes standard Boost148 spacing for the rear wheel and Boost110 for the front. The frame is designed for a ZS headset and features an adaptable travel range. The UDH (Universal Derailleur Hanger) ensures compatibility with a wide range of modern drivetrains. The TQ system uses specific charging components; always use the charger provided with the e-bike.

Care:

  • Cleaning: Clean the bike regularly with water and mild soap. Avoid high-pressure washers, especially around bearings and the e-system components. Wipe down the frame, motor, and battery area with a damp cloth. Ensure the bike is dry before storing.
  • Battery: Store the battery in a cool, dry place between rides. Avoid extreme temperatures. Refer to the TQ system manual for specific charging and storage recommendations.
  • Drivetrain: Keep the chain clean and lubricated. Regular maintenance of the derailleur and cassette will ensure smooth shifting.
  • Suspension: Follow the manufacturer's guidelines for suspension service intervals to maintain optimal performance and longevity.

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