How to Service Your Float SL Factory Rear Shock Without a Mechanic

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Maintaining the Fox Float SL Factory rear shock ensures peak performance and extends the life of your bike. With proper tools and careful attention to detail, you can service this shock without the need for a mechanic. This guide will walk you through the essential steps for installation, adjustment, maintenance, troubleshooting, and optimization.

Tools Required

  • Fox Float air pump
  • 5mm and 6mm Allen wrenches [paid link]
  • Torque wrench [paid link]
  • Suspension fluid (Fox Float fluid)
  • Isopropyl alcohol
  • Towel or rag
  • Clean workbench or surface
  • O-ring tool
  • Seal kit for Fox Float shocks (optional, for full overhaul)
  • Shock fluid syringe
  • Seal grease (Fox recommended)

Installation of the Fox Float SL Factory Rear Shock

Installing the Fox Float SL Factory rear shock correctly is crucial for both performance and safety. The installation process requires precision to ensure that the shock operates efficiently.

  1. Prepare the Suspension Linkage: Ensure that the linkage on your bike is clean and free of debris. Inspect it for wear and tear. Any dirt or old grease can cause issues with the shock’s performance.
  2. Install the Shock into the Frame: Align the mounting eyelets of the shock with the frame’s shock mounts. Slide the shock into place, ensuring that the eyelets fit perfectly with the frame mounts. Be cautious of the orientation; the shock’s logo should be visible when installed.
  3. Secure the Bolts: Use your 5mm and 6mm Allen wrenches [paid link] to tighten the shock mounting bolts. Make sure to follow the recommended torque settings as per the manufacturer’s specifications (usually 8-10Nm for the bolts).
  4. Check for Clearance and Movement: Once installed, check for proper clearance between the shock and frame. Compress the suspension by hand to ensure smooth movement.

Adjusting the Fox Float SL Factory Rear Shock

The Fox Float SL Factory rear shock comes with multiple adjustment settings. These allow riders to fine-tune their suspension based on riding style, terrain, and personal preferences. Adjusting these settings will provide optimal performance.

Air Pressure Adjustment

  1. Check the Recommended Air Pressure: The recommended air pressure is usually listed on the shock itself. If not, consult the bike’s manual for guidance. The pressure will vary based on rider weight, with lighter riders using less air pressure.
  2. Use a Fox Float Air Pump: Attach the air pump to the shock’s valve and increase or decrease air pressure as necessary. Use the pump’s gauge to measure and adjust the air pressure to your desired setting.
  3. Fine-Tuning: After setting the recommended pressure, you may need to fine-tune it based on ride feel. Start with a slightly lower pressure for comfort and adjust upwards for more support and responsiveness.

Rebound and Compression Damping

  1. Adjust Compression Damping: The compression damping dial controls how the shock compresses under load. Turn the dial clockwise for stiffer compression or counterclockwise for a softer, more compliant ride.
  2. Adjust Rebound Damping: The rebound dial adjusts the speed at which the shock extends after being compressed. Turn it clockwise to slow the rebound or counterclockwise to speed it up. Adjust until you find a balance between comfort and control.

Servicing the Fox Float SL Factory Rear Shock

Routine maintenance of the rear shock ensures that it performs optimally. Follow these steps to service your shock without professional help.

Cleaning and Inspection

  1. Clean the Shock: Use a rag dampened with isopropyl alcohol to clean the shock’s external parts. Pay attention to the seals and the shock body. Dirt can damage the seals and cause leaks or premature wear.
  2. Inspect the Seals: Inspect the seals for signs of damage. If the seals are cracked or excessively worn, they may need to be replaced. Fox provides seal kits specifically for the Float SL Factory rear shock, which includes replacement seals and bushings.

Replacing the Shock Seals (Full Overhaul)

  1. Disassemble the Shock: Remove the shock from the bike frame using the same procedure as the installation steps. Then, carefully remove the eyelet bolts with your Allen wrenches.
  2. Remove the Damper: Use a shock-specific tool or vice to carefully remove the damper from the shock body. Be sure not to damage the damper during removal.
  3. Replace the Seals: Using your O-ring tool, carefully remove the old seals and install the new ones. Apply a thin layer of shock fluid or seal grease to the new seals to ensure smooth operation.
  4. Reassemble the Shock: After replacing the seals, reassemble the shock by carefully reinstalling the damper. Ensure that everything is properly tightened, but avoid over-tightening, which could cause damage.
  5. Test the Shock: After reassembling the shock, reattach it to the bike frame and test the suspension. Check for smooth compression and rebound. If any issues persist, disassemble the shock again and ensure the seals are properly installed.

Troubleshooting Common Set-Up Issues

While setting up the Fox Float SL Factory rear shock, there are a few common issues you may encounter. Here’s how to troubleshoot and resolve them:

Lack of Suspension Travel

  • Cause: Insufficient air pressure can limit the suspension travel.
  • Solution: Check the air pressure and adjust it according to the manufacturer’s specifications. Increase the pressure if the shock feels overly soft.

No Rebound Action

  • Cause: The rebound damping may be set too slow, or the damper oil could be low.
  • Solution: Adjust the rebound dial to a faster setting. If the issue persists, inspect the shock for leaks and check the oil levels.

Shock Bottoming Out

  • Cause: Insufficient compression damping or air pressure.
  • Solution: Increase the compression damping setting or adjust the air pressure to a higher value to prevent bottoming out.

Customizing and Optimizing the Fox Float SL Factory Rear Shock

To get the most out of your Fox Float SL Factory rear shock, consider optimizing it for your riding style and terrain.

  1. Personalize Air Pressure: Customize the air pressure to suit your weight, riding style, and terrain. Riders who frequently ride aggressive trails may need a higher air pressure for additional support.
  2. Tune Compression and Rebound Settings: Adjust compression and rebound damping to match the type of riding you do. Softer settings may work better for cross-country riding, while firmer settings could be beneficial for aggressive downhill rides.
  3. Use Custom Seal Grease: For smoother operation, use high-quality seal grease as recommended by Fox. This will help reduce friction and protect the seals, leading to a more responsive and durable shock.

Compatibility with Other Drivetrain Components

The Fox Float SL Factory rear shock is designed to be compatible with most modern mountain bike drivetrains. However, when selecting other components, such as a fork or wheelset, make sure they match the overall geometry of your bike.

  • Suspension Fork Compatibility: Ensure that the fork is designed for the same travel and handling characteristics as your rear shock. A mismatched fork and shock can lead to poor performance and compromised handling.
  • Rear Triangle Compatibility: Double-check that your bike’s rear triangle can accommodate the shock’s eyelet spacing and dimensions. Most modern bike frames will work with the Float SL Factory, but it’s always best to verify.

By following these steps for installation, adjustment, maintenance, troubleshooting, and optimization, you can keep your Fox Float SL Factory rear shock in top condition, ensuring smooth and reliable performance for every ride.