Trek Fuel+ EX 8 Electric Mountain Bike - Purple
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Product Information
Full details
The Trek Fuel+ EX 8 is an electric mountain bike designed for riders seeking a capable and composed experience on challenging trails. Its key benefit lies in the smooth power delivery from TQ's HPR-60 motor combined with a robust suspension system, offering confidence on rough terrain. A potential caveat for some users may be the 580Wh battery capacity, which might require careful planning for very long rides.
All features
| Model Part Number | 5335675 |
|---|---|
| Brand | Trek |
Extended Product Information
FAQs
What is the range of the 580Wh battery?
The actual range varies greatly depending on terrain, rider weight, assist level, and rider pedaling input. TQ systems are known for efficiency, but expect anywhere from 30-80 miles or more on a single charge.
Can I install a larger battery?
The Trek Fuel+ EX 8 is designed for the integrated 580Wh TQ battery. There is no official provision for a larger or external battery.
How do I clean the TQ motor unit?
Wipe the motor unit with a damp cloth and mild soap. Avoid directing high-pressure water jets at the motor housing or electrical connections.
What is the warranty period for the bike and motor?
Trek typically offers a lifetime warranty on frames to the original owner and a limited warranty on components, including the TQ motor and battery. Please refer to Trek's official warranty documentation for specifics.
Is this bike suitable for bikepacking?
While the bike is robust, its primary design is for trail riding. Limited mounting points may make extensive bikepacking setups challenging compared to dedicated touring or bikepacking rigs.
What size wheels does it use?
The Trek Fuel+ EX 8 uses 29-inch wheels.
How much travel does the suspension have?
The bike features 150 mm of travel in the front fork and 145 mm of travel in the rear shock.
Troubleshooting
Motor not providing assist
Check battery charge level, ensure the battery is properly seated, and verify the controller is powered on. Consult the TQ system manual for error codes displayed on the LED unit.
Shifting issues
Ensure the rear derailleur is correctly aligned (check UDH alignment). For T-Type systems, confirm all components are T-Type compatible and follow SRAM's specific setup guide.
Brakes feel spongy
The brake system may require bleeding. Refer to SRAM's service manual for hydraulic brake bleeding procedures or seek assistance from a qualified mechanic.
Suspension feels harsh or lacks travel
Re-check suspension air pressure settings. Ensure the fork and shock are not set to a lockout or climbing mode. Inspect for any physical obstructions.
Creaking noises
Investigate common sources of noise such as the bottom bracket, headset, seatpost clamp, or pedal threads. Tighten any loose components and apply appropriate grease.
Pros and Cons
Pros
- Smooth and quiet motor assistance from TQ HPR-60.
- Confident handling thanks to a capable Fox suspension setup.
- Reliable and crisp shifting with the SRAM Eagle 70 T-Type drivetrain.
- Powerful and consistent braking performance from SRAM DB 8 hydraulic discs.
- Durable aluminum frame with modern internal routing and integrated features.
Cons
- The 580Wh battery may be insufficient for extremely long, unsupported rides.
- T-Type drivetrains can sometimes have specific setup requirements.
- While capable, this bike is geared more towards trail riding than aggressive downhill.
- Integrated batteries can sometimes add complexity to maintenance.
Setup, Compatibility & Care
Setup:
- Assembly: Ensure all components are securely tightened according to manufacturer specifications. This includes handlebars, stem, seatpost, and pedals (sold separately).
- Tire Setup: For tubeless setup, ensure you have appropriate rim tape, sealant, and valve stems. Inflate tires to recommended pressure based on rider weight and terrain.
- Suspension Setup: Adjust air pressure in the Fox fork and rear shock to match your body weight and riding style. Consult the suspension manufacturer's guides for detailed setup.
- Brake Bedding: Follow SRAM's recommendations for bedding in the hydraulic disc brakes to achieve optimal stopping power.
Compatibility:
- Wheels: Uses Boost110 front and Boost148 rear hub spacing.
- Drivetrain: Compatible with SRAM Eagle T-Type components.
- Headset: ZS headset.
- Bottom Bracket: Standard threaded bottom bracket (check specific TQ motor integration).
- Dropper Post: Uses a 34.9 mm diameter seatpost.
- Rear Axle: UDH (Universal Derailleur Hanger) compatible.
Care:
- Cleaning: Clean the frame and components regularly with mild soap and water. Avoid high-pressure washing directly on bearings or motor.
- Drivetrain Maintenance: Keep the chain clean and lubricated. Periodically check for wear on the cassette and chainrings.
- Brake Care: Inspect brake pads for wear and clean rotors with isopropyl alcohol if contaminated.
- Suspension Service: Follow Fox's recommended service intervals for fork and shock maintenance.
- Battery Care: Store the battery in a cool, dry place. Avoid extreme temperatures. Charge the battery regularly, even if not in use for extended periods.