The Boxxer Select RC [paid link] by RockShox is a high-performance suspension fork designed for aggressive mountain biking. Its robust features provide riders with optimal control and comfort on rough terrains, making it a popular choice for downhill and enduro cyclists. In this guide, we will walk through everything you need to know about installing, adjusting, maintaining, and optimizing your Boxxer Select RC [paid link] suspension fork.
Installation of the Boxxer Select RC Suspension Fork
Step 1: Remove Your Existing Fork
Before installing the Boxxer Select RC, you will need to remove the old suspension fork. This process involves loosening the headset and stem bolts, detaching the brake calipers from the fork legs, and sliding the fork out of the headset. Carefully clean the head tube to ensure no dirt or debris remains.
Step 2: Install the Boxxer Select RC Fork
To install the Boxxer Select RC, carefully slide the fork steerer tube into the head tube of the frame. Once in position, align the fork with the front wheel axle. Secure the fork using the correct headset spacers, ensuring that it is seated properly. Tighten the stem bolts evenly to the manufacturer’s recommended torque specification to prevent damaging the fork or frame.
Step 3: Reattach the Brake Calipers and Adjust the Front Wheel
With the fork secured in place, reattach the brake calipers and align the front wheel to ensure the rotor is properly centered within the brake pads. Tighten the axle bolts securely and ensure the wheel spins freely without rubbing the fork legs.
Step 4: Final Adjustments
After installation, perform a quick check to ensure the headset and stem are properly tightened, and verify the overall alignment of the fork and front wheel.
Adjusting the Boxxer Select RC Fork for Optimal Performance
The Boxxer Select RC offers several adjustment options to tailor the ride to your personal preferences. These include settings for rebound, compression, and air spring pressure.
Rebound Adjustment
Rebound damping controls how quickly the fork returns to its original position after compressing. The Boxxer Select RC has a rebound adjuster located on the lower leg. To adjust it:
- Turn the rebound knob clockwise to slow down the rebound.
- Turn the knob counterclockwise to speed it up.
For optimal performance, you should aim for a balanced rebound speed where the fork does not “bounce” back too quickly or feel sluggish.
Compression Adjustment
The compression damping affects the fork’s resistance to compressing when you hit bumps or obstacles. The Boxxer Select RC features an external compression adjustment knob, allowing you to fine-tune the fork’s performance.
- For smoother terrain, reduce compression damping for better sensitivity.
- For rougher terrain or aggressive riding, increase the compression to provide more support.
Air Spring Pressure
The Boxxer Select RC uses a coil-negative air spring system. Adjusting the air spring pressure impacts the fork’s overall feel. To adjust the air pressure, use a shock pump to increase or decrease the pressure based on your weight and riding style. Riders should aim for a sag of around 20-30% of the total fork travel for the most balanced ride.
Maintaining the Boxxer Select RC Fork
Routine maintenance is essential to keeping your Boxxer Select RC fork performing at its best. Regular maintenance ensures that you get the most out of your suspension, keeping the ride smooth and preventing damage to critical components.
Cleaning and Lubing
After every ride, clean the fork using mild soap and water to remove dirt and debris. Use a microfiber cloth to wipe down the fork stanchions, making sure the dust seals are free from dirt that can lead to wear over time. It’s also essential to lubricate the stanchions with a suspension-specific oil periodically to maintain smooth performance.
Regular Inspections
Inspect the fork regularly for any signs of wear or damage, such as scratches on the stanchions, which can cause leaks and reduce performance. Check the air spring for leaks by gently pressing on the fork and ensuring it doesn’t lose pressure. Also, look for any cracks in the fork legs or crown.
Oil Change and Service Intervals
Changing the suspension oil and servicing the internals are critical parts of maintenance. RockShox recommends changing the oil in the Boxxer Select RC fork every 50 hours of riding or annually, whichever comes first. Follow the RockShox service manual for step-by-step instructions on performing an oil change. It’s recommended that the fork be serviced by a professional mechanic at least once a year, especially if you ride in harsh conditions.
Troubleshooting Common Set-Up Issues
Fork Not Returning Properly
If the fork does not rebound smoothly or quickly enough, check the rebound adjustment. If it’s set correctly, but the fork is still sluggish, it might require an oil change or air spring adjustment. Ensure the fork is properly lubricated, as lack of maintenance could lead to friction in the damper.
Too Much Sag
If the fork sags excessively, it may indicate insufficient air spring pressure. Increase the air pressure slightly until you reach the desired sag range of 20-30%. If adjusting the air pressure does not fix the issue, consider checking the fork seals or seeking a professional service.
Unwanted Noise
Any grinding, squeaking, or knocking noises from the fork should be checked immediately. Often, these noises are caused by dirt, debris, or damaged bushings. Clean the fork thoroughly and ensure that all bolts are tightened to specification. If the issue persists, the fork may need to be disassembled for a deeper inspection.
Customization and Optimization for Better Performance
The Boxxer Select RC is highly customizable to suit different riding styles. Here are some ways to optimize its performance further:
- Spring Customization: While the Boxxer Select RC uses an air spring, it’s possible to experiment with different air pressure levels for various riding styles. Lighter riders might prefer a lower air pressure for increased sensitivity, while heavier riders may prefer a higher setting to avoid bottoming out.
- Compression Damping Fine-Tuning: Adjusting compression damping can drastically change the way the fork behaves on different terrains. Increase compression damping for steep, rocky trails to prevent excessive bottoming out, and reduce it for smoother, less aggressive trails for better sensitivity.
Comparison with Other Fork Models
When comparing the Boxxer Select RC to other similar suspension forks like the RockShox Boxxer World Cup [paid link] or Marzocchi Bomber Z1 [paid link], the primary differences lie in the range of adjustability and weight.
- Boxxer World Cup [paid link]: Offers more fine-tuning options with separate high and low-speed compression adjustments and is considered slightly lighter, but at a higher price point.
- Marzocchi Bomber Z1 [paid link]: Known for its durability and ease of maintenance, the Bomber Z1 is heavier but offers a similar performance level to the Boxxer Select RC in terms of downhill riding and aggressive trails.
The Boxxer Select RC strikes a balance between performance and affordability, making it a great choice for riders looking for a high-performing fork without breaking the bank.
Understanding Compatibility with Other Drivetrain Components
The Boxxer Select RC is compatible with a wide range of mountain bike frames, especially those designed for downhill and enduro disciplines. However, it’s important to verify that the fork’s axle type (usually a 20mm thru-axle or 15mm through-bolt) matches the frame’s dropouts. Additionally, ensure that the head tube size and the fork’s steerer tube length are compatible with your bike frame.
While the Boxxer Select RC offers excellent suspension performance, pairing it with the right drivetrain components, such as a reliable Shimano or SRAM cassette and derailleur, will ensure smooth and precise shifting during high-speed descents.
By following these maintenance tips and customization options, the Boxxer Select RC will deliver top-notch performance, enhancing your comfort and control on even the roughest trails.