How to Rebuild Your Deluxe Select+ Rear Shock at Home

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The RockShox Deluxe Select+ rear shock is a popular choice among mountain bikers for its smooth performance and adjustable features. Rebuilding this shock at home is a great way to maintain its functionality, extend its lifespan, and ensure optimal performance. In this guide, we will walk you through the steps to rebuild your Deluxe Select+ rear shock, covering everything from disassembly to reassembly. Whether you are an experienced mechanic or a DIY enthusiast, these instructions will provide a comprehensive understanding of the process.

Tools Required

  • Shock pump
  • 10mm, 8mm, and 5mm Allen wrenches [paid link]
  • Torque wrench [paid link] (up to 100 Nm)
  • Small flathead screwdriver
  • Clean rag or towel
  • Suspension fluid (RockShox recommended)
  • O-rings and seals (specific to the Deluxe Select+ model)
  • Snap ring pliers
  • Bench vise with soft jaws
  • 5mm ball end hex driver
  • Small container for parts organization

Step 1: Remove the Shock from the Bike

Before beginning the rebuild process, it is essential to safely remove the Deluxe Select+ rear shock from the bike. Follow these steps:

  1. Release air pressure: Use a shock pump to release any air pressure from the shock. This is crucial for your safety and to prevent damage during disassembly.
  2. Detach the shock: Using the appropriate Allen wrenches [paid link], remove the bolts securing the shock to the frame. Be sure to keep track of any washers or spacers.
  3. Inspect the shock: Before proceeding with the rebuild, examine the shock for any visible damage or signs of wear. If any components are excessively worn or damaged, replace them before continuing.

Step 2: Disassemble the Shock

Disassembling the shock correctly is critical to prevent damage to the internal components. The Deluxe Select+ features a basic damper assembly, and the disassembly process should be carried out methodically.

  1. Secure the shock: Place the shock in a bench vise with soft jaws to avoid damaging the body of the shock. Be careful not to overtighten, as this could deform the shock.
  2. Remove the air can: Using the 8mm Allen wrench [paid link], unscrew the air can from the shock body. This will expose the internal components, including the damper and spring assembly.
  3. Take out the piston and damper: Carefully remove the piston assembly and the damper shaft from the shock body. You may need a snap ring tool to remove the retaining clips that hold these components in place. Take note of the order of parts for reassembly.
  4. Drain the oil: Allow any residual oil inside the shock to drain completely. This step is important to ensure that no old fluid remains when you add new oil during reassembly.

Step 3: Clean and Inspect the Parts

Once disassembled, it is time to clean and inspect all the parts thoroughly:

  1. Clean all components: Use a clean rag or towel to wipe down all internal parts, including the air can, damper, piston, and seals. Ensure no dirt or debris is left behind.
  2. Check for damage: Inspect all components for wear, scoring, or damage. Look for damaged O-rings, seals, or piston assemblies that need replacing.
  3. Replace seals and O-rings: It is essential to replace any damaged seals and O-rings during the rebuild. RockShox typically recommends specific seals for each model, so ensure that you are using the correct replacements for the Deluxe Select+.

Step 4: Reassemble the Shock

Reassembling the shock requires attention to detail and precision. Follow these steps for a smooth reassembly process:

  1. Lubricate parts: Before reassembling, apply a small amount of suspension fluid to the seals, O-rings, and any moving parts. This lubrication ensures smooth operation and helps prevent premature wear.
  2. Insert the damper and piston: Carefully slide the piston and damper shaft back into the shock body. Ensure that everything is seated properly and that the retaining clips are securely fastened.
  3. Attach the air can: Once the damper is in place, carefully screw the air can back onto the shock body. Tighten it using the 8mm Allen wrench [paid link] to the manufacturer’s recommended torque setting.
  4. Check the assembly: Before moving on, double-check that all components are in place and the shock is fully reassembled with no loose parts.

Step 5: Add New Suspension Fluid

After reassembling the shock, it is essential to fill the shock with new suspension fluid to ensure proper damping and performance. Follow these steps:

  1. Check fluid level: Consult the RockShox manual for the correct amount of fluid for your Deluxe Select+ model. This information can usually be found on the manufacturer’s website or within the product documentation.
  2. Fill the shock: Using a syringe or dropper, carefully add the recommended suspension fluid into the shock body. Ensure that the fluid level is accurate and within the specified range.
  3. Seal the shock: Once the fluid is added, seal the shock by tightening all necessary bolts and ensuring that the air can is properly secured.

Step 6: Reinstall the Shock

Now that the shock has been rebuilt and refilled with fluid, it is time to reinstall it on your bike.

  1. Align the shock: Position the shock correctly on the bike frame, aligning it with the mounting points. Ensure that the shock is oriented as per the manufacturer’s specifications.
  2. Attach the shock: Using the appropriate Allen wrenches, secure the shock in place with the bolts you removed earlier. Be sure to tighten them to the recommended torque settings.
  3. Reinflate the shock: Use a shock pump to inflate the shock to your desired pressure, according to your weight and riding preferences. Always refer to the manufacturer’s pressure guidelines.

Step 7: Test and Fine-Tune

After reinstalling the shock, it is crucial to perform a thorough test to ensure that the rebuild was successful and that the shock is functioning correctly.

  1. Check for leaks: With the shock properly inflated, check for any signs of air or fluid leaks around the seals. If any leaks are detected, you may need to disassemble and check the seals again.
  2. Test the shock: Ride your bike on smooth terrain and check for smooth operation. Pay attention to any unusual sounds or movements, which could indicate that further adjustments or maintenance is needed.
  3. Fine-tune the settings: Adjust the rebound, compression, and air pressure settings based on your personal riding preferences and trail conditions. Fine-tuning these settings will help optimize your bike’s suspension performance.

Troubleshooting Common Issues

Shock Is Not Holding Air

If your Deluxe Select+ rear shock is not holding air after the rebuild, it could be due to damaged seals, improper reassembly, or issues with the valve. Inspect the seals carefully and ensure all parts are correctly seated. If the problem persists, check the air valve for damage.

Poor Rebound Performance

If the shock feels sluggish or the rebound is too fast or slow, this could be due to incorrect oil levels or contamination within the damper. Check the fluid levels and inspect the damper shaft for any damage. Ensure that the shock is properly reassembled and lubricated.

Leaking Fluid

If fluid is leaking from the shock, it could be due to damaged seals or improper reassembly. Disassemble the shock again, replace any worn seals, and ensure all components are correctly installed.

Conclusion

Rebuilding the RockShox Deluxe Select+ rear shock at home is a manageable task for those with the right tools and attention to detail. By following these steps, you can ensure that your shock performs optimally, extends its lifespan, and provides a smooth, controlled ride. Proper maintenance and rebuilds are crucial to maintaining your bike’s suspension system, ensuring you enjoy a comfortable and reliable riding experience for years to come.