DIY Wheel Setup Tips for EXC 1501 SPLINE One Performance

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The DT Swiss EXC 1501 SPLINE One [paid link] is a high-performance wheelset designed for demanding mountain biking applications. Known for its robust construction and excellent durability, the EXC 1501 SPLINE One [paid link] is well-suited for aggressive trail riders and cross-country enthusiasts. This guide will provide you with detailed, expert-level instructions on how to install, adjust, and maintain your DT Swiss EXC 1501 SPLINE One wheels. Additionally, we will cover troubleshooting common setup issues, customization options, and ensure compatibility with other drivetrain components.

Tools Required

  • Torque wrench [paid link]
  • 5mm Allen wrench [paid link]
  • 6mm Allen wrench [paid link]
  • 10mm spanner
  • Valve core remover
  • Rim tape (if necessary)
  • Tubeless valve stems
  • Tubeless sealant
  • Bike stand [paid link] or secure bike holder
  • Tire levers

Installation of the EXC 1501 SPLINE One

1. Preparing the Wheels

Before you begin, ensure the wheels are properly prepared for setup. Check that the EXC 1501 SPLINE One wheels are free from any factory packing materials and are ready for tire installation.

2. Installing the Tubeless Setup

The EXC 1501 SPLINE One is compatible with tubeless tires, offering the benefits of reduced rolling resistance and better puncture resistance. To set up a tubeless system, follow these steps:

  1. Install the Rim Tape: Make sure that the internal rim bed is clean and smooth. Apply a tubeless-specific rim tape to create an airtight seal. The tape should cover the entire rim, including the spoke holes, to prevent any air leaks.
  2. Insert Tubeless Valves: Place the tubeless valve stem into the valve hole on the rim. Tighten it using your fingers or a small wrench to ensure a secure fit.
  3. Mount the Tire: Fit the tire onto the rim, starting at one side and working your way around. Use tire levers if necessary to get the bead onto the rim. Make sure the tire is seated evenly on both sides of the rim.
  4. Inflate the Tire: Use a floor pump or CO2 inflator to inflate the tire. The bead should snap into place as the pressure rises. If you experience difficulty, gently tap the side of the tire to help seat the bead.

3. Installing the Wheelset on the Bike

Once the tires are mounted, it’s time to install the wheels onto the bike. Here’s how to proceed:

  1. Check the Axles: The EXC 1501 SPLINE One features a through-axle system. Make sure that the correct size of through-axle is used for your bike frame (15mm or 12mm, depending on your setup).
  2. Place the Front Wheel: Lift the front wheel and insert the axle through the fork dropouts. Secure the axle by tightening the lever or through-axle bolt with a torque wrench [paid link].
  3. Place the Rear Wheel: For the rear wheel, insert the axle into the rear dropouts, making sure it is aligned correctly. Tighten the axle with the same torque specifications.
  4. Verify Brake Compatibility: Ensure that the brake rotor is properly aligned with the brake caliper. Adjust as necessary to prevent rubbing.

Adjustment and Maintenance Tips

Hub Maintenance

The hubs on the EXC 1501 SPLINE One feature DT Swiss’ reliable Star Ratchet freehub mechanism. Over time, dirt and debris can accumulate, leading to reduced performance. To keep the hubs in top condition, follow these steps:

  1. Clean the Hubs Regularly: Use a clean cloth and a mild detergent to wipe down the hubs after each ride. Avoid harsh chemicals that may damage the bearings or seals.
  2. Grease the Freehub Mechanism: Periodically remove the freehub body and clean it thoroughly. Apply a light coat of grease to the freehub pawls and internal mechanism to ensure smooth engagement.

Spoke Tension and Truing the Wheels

Maintaining proper spoke tension is crucial for the longevity and performance of your EXC 1501 SPLINE One wheels. Regularly check the spoke tension and wheel trueness.

  1. Check Spoke Tension: Using a spoke tension meter, verify that all spokes are tensioned evenly. If you notice any loose spokes, tighten them incrementally using a spoke wrench.
  2. True the Wheel: If you find the wheel is out of true, use a spoke wrench to adjust the spokes on the affected side. Make sure to adjust the spokes gradually to avoid creating further distortion.

Tire Pressure Adjustment

Proper tire pressure ensures optimal performance and safety. For the EXC 1501 SPLINE One, it is important to use the recommended tire pressure based on your riding style and the terrain.

  • Cross-country riding: 30-35 psi
  • Trail riding: 25-30 psi
  • Enduro riding: 22-28 psi

Monitor tire pressure regularly, especially before each ride, to ensure it remains within the optimal range.

Troubleshooting Common Setup Issues

1. Leaking Tubeless Tires

If your tubeless tires are leaking air, it could be due to an improper seal between the rim and tire bead. Ensure the rim tape is properly installed and that the tire bead is correctly seated. Adding extra tubeless sealant can help seal small gaps.

2. Brake Rotor Rub

If you notice a rubbing noise from the brake rotors, the rotor may not be aligned with the caliper. Use a 5mm Allen wrench to adjust the caliper position so that it is centered over the rotor.

3. Loose Axles

If the axles are not tightened properly, the wheels may feel unstable. Always ensure that the through-axles are torqued to the recommended specifications using a torque wrench.

Customization and Optimization

1. Customizing the Hub Engagement

The Star Ratchet freehub system on the EXC 1501 SPLINE One allows for customization of the engagement feel. By changing the number of pawls, riders can adjust the engagement speed. Fewer pawls provide a faster, more immediate engagement, while more pawls give a smoother feel with a bit of delay.

2. Optimizing for Weight Reduction

If you’re looking to optimize your wheelset for lighter weight, consider switching to lighter tires or upgrading to a carbon rim version of the EXC 1501 SPLINE One. Reducing rotating mass can significantly improve acceleration and climbing efficiency.

Compatibility with Other Drivetrain Components

The EXC 1501 SPLINE One is compatible with a variety of drivetrain setups, including both 11-speed and 12-speed systems. The freehub body supports Shimano HG and SRAM XD driver bodies, making it versatile [paid link] for different bike builds.

Before installing your EXC 1501 SPLINE One on a bike, ensure that the freehub driver body is compatible with your cassette. For 12-speed systems, you may need to use an XD driver body or an appropriate adapter for your cassette.

Cassette Compatibility

For Shimano and SRAM systems, the EXC 1501 SPLINE One can accept a wide range of cassettes. Ensure that the cassette you choose is compatible with the freehub body type. If you’re using a 12-speed SRAM Eagle cassette, an XD driver body is required.

By paying attention to these factors, you can ensure smooth compatibility and optimal performance with your drivetrain components.