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....

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The Trek Fuel+ EX 5 Gen 2 is designed for adventurous riders seeking a capable and quiet electric mountain bike for any trail, any time. Its key benefit lies in the smooth, powerful boost from the compact TQ motor combined with reliable suspension and braking components, offering confidence on challenging terrain. A potential caveat for some users might be the 580Wh battery capacity, which may require careful power management on extended rides. This bike features an Alpha NEXT Platinum aluminum frame, a RockShox Recon Silver RL fork, X-Fusion Pro 2 rear shock, and a Shimano Deore 12-speed drivetrain.

All features

Model Part Number5335683
BrandTrek

Extended Product Information

FAQs

What is the expected range of the TQ 580Wh battery?

The range varies greatly depending on factors like rider weight, terrain, assist level, and pedaling effort. Consult the TQ e-bike app for more personalized range estimates and riding modes.

Can I swap the stock tires for a different size?

The frame and fork are designed for 29x2.40" tires. While minor variations might fit, exceeding this size could cause frame or suspension interference. Always check clearance before mounting.

How do I adjust the suspension travel?

The frame allows for adaptable travel between 145 mm and 160 mm by changing the orientation of the lower shock mount. Consult the Trek service manual or a dealer for detailed instructions.

What type of charger is required for the TQ battery?

The bike comes with a specific TQ charger designed for the 580Wh battery. Use only the provided charger to avoid damage to the battery or charging system.

Is this bike suitable for bike park riding?

While the bike is robust and has capable suspension, its design is primarily for trail riding. For demanding bike park use with frequent jumps and drops, a bike with longer travel and burlier components may be more appropriate.

What is the warranty on the Trek Fuel+ EX 5 Gen 2?

Trek typically offers a lifetime warranty on the frame and a limited warranty on components and the e-system. Please refer to the official Trek warranty documentation for specific details.

Can I fit fenders or a rear rack to this bike?

The frame is designed for trail riding and typically does not feature mounts for traditional fenders or rear racks. Accessory compatibility is limited, and specific Trek-approved solutions may be available.

Troubleshooting

Motor does not provide assistance.

Check if the battery is charged and properly inserted. Ensure the TQ LED display is active and no error codes are shown. Verify that assist is enabled via the controller.

Brakes feel weak or spongy.

The hydraulic brake system may need bleeding. Check brake pads for wear and clean rotors. Ensure the brake levers are not loose.

Rear shock is not providing full travel.

Verify that the rear shock is not set to 'lockout' mode via its 2-position damper. Check air pressure if applicable (though this is a coil/damper based shock) and consult X-Fusion documentation for service.

Shifting is imprecise or skipping gears.

Inspect the rear derailleur for damage. Adjust the derailleur cable tension. Ensure the chain and cassette are clean and free from excessive wear.

Tires are not holding air (tubeless setup).

Ensure the Bontrager Line TLR rims and Gunnison Elite XR tires are properly seated. Add or check the amount of tubeless sealant. Inspect tire bead and rim for any damage.

Pros and Cons

Pros

  • Smooth and quiet TQ motor provides ample assistance for climbs.
  • Capable suspension (150mm front, 145mm rear) handles varied trail conditions well.
  • Reliable Shimano Deore drivetrain offers a wide gear range.
  • Powerful 4-piston hydraulic disc brakes ensure confident stopping power.
  • Durable Alpha NEXT Platinum aluminum frame with internal cable routing.

Cons

  • Battery capacity (580Wh) may be limiting for very long or demanding rides without careful management.
  • Internal routing can make maintenance more complex for some users.
  • Wire bead tires might require specific sealant for optimal tubeless setup.
  • Lower shock mount is interchangeable, adding complexity for suspension tuning.

Setup, Compatibility & Care

Initial Setup: Upon receiving the bike, ensure all components are securely fastened. It is highly recommended to have the bike professionally assembled and tuned by a qualified bicycle mechanic to ensure safety and optimal performance. This includes proper installation of the TQ motor system and battery, as well as suspension adjustments.

Compatibility: The bike uses a standard Boost148 rear hub spacing and a Boost110 front hub. The headset is a ZS type. It features an interchangeable alloy rocker link and an interchangeable lower shock mount for suspension tuning. The drivetrain is compatible with UDH (Universal Derailleur Hanger) for easy replacement.

Care:

  • Cleaning: Regularly clean the frame, drivetrain, and suspension components with water and mild soap. Avoid high-pressure washers, especially on bearings and motor components.
  • Drivetrain Maintenance: Keep the chain clean and lubricated. The Shimano Deore M6100 drivetrain requires periodic derailleur tuning.
  • Suspension: Refer to RockShox and X-Fusion manuals for specific service intervals and procedures for the fork and rear shock.
  • Battery Care: Store the TQ battery in a cool, dry place. Avoid extreme temperatures. Follow TQ's guidelines for charging and storage to maximize battery lifespan.
  • Brakes: Periodically check brake pad wear and fluid levels. Bleed the hydraulic brakes as needed according to Shimano's recommendations.