The ElevenSix Trunnion [paid link] rear shock from Push Industries is a premium, high-performance suspension component designed for serious mountain bikers. Known for its exceptional tuning capabilities, durability, and customization options, the ElevenSix Trunnion [paid link] is an ideal choice for riders looking to optimize their bike’s rear suspension for precise control and superior ride quality. This comprehensive guide will walk you through the installation, adjustment, and maintenance of the ElevenSix Trunnion rear shock, as well as troubleshooting common issues and tips for improving performance.
Installation of ElevenSix Trunnion Rear Shock
Installing the ElevenSix Trunnion rear shock is a straightforward process if you follow the right steps. Here is a step-by-step guide:
- Remove the Existing Shock:
- Begin by removing the current rear shock from your bike. Use a torque wrench [paid link] to safely loosen and remove the mounting bolts holding the shock in place.
- Carefully remove the shock from the frame and set it aside.
- Prepare the Trunnion Mount:
- Inspect the trunnion mount on your frame to ensure it is free of dirt, grime, or old grease. Clean the area using a soft cloth.
- Apply a small amount of grease to the shock eyelets and mounting hardware to reduce friction and ensure smooth operation.
- Install the ElevenSix Trunnion Shock:
- Align the shock with the frame’s trunnion mount. Slide the shock into place and insert the mounting bolts.
- Tighten the bolts with a torque wrench [paid link] to the recommended torque specifications provided by Push Industries. Ensure both bolts are tightened evenly.
- Check Shock Alignment:
- Make sure the shock is aligned correctly with the frame. There should be no binding or misalignment in the mounting points.
- Reinstall Any Components:
- If you removed any components during the installation, such as the rear wheel or linkage, reinstall them carefully.
- Test the Shock:
- Before riding, perform a quick test to check the shock’s compression and rebound. You should feel smooth movement with no resistance or play in the shock.
Adjustment of ElevenSix Trunnion Rear Shock
The ElevenSix Trunnion rear shock comes with multiple adjustment options that allow riders to fine-tune the suspension to their specific riding style and conditions. The following adjustments are essential for optimizing your ride:
Compression Damping
Compression damping controls how quickly the shock compresses when it encounters obstacles. To adjust:
- Locate the compression dial on the shock.
- Turn the dial clockwise to increase compression (firmer feel) or counterclockwise to decrease compression (softer feel).
- Test the setting by riding on various terrain and adjusting further based on comfort and performance.
Rebound Damping
Rebound damping controls how quickly the shock returns to its original position after compression. Proper rebound adjustment ensures that the shock returns at the right speed for your riding style.
- Locate the rebound dial on the shock.
- Turn the dial clockwise to slow the rebound or counterclockwise to increase the rebound speed.
- Experiment with different rebound settings based on the terrain to find the best balance.
Sag Setting
Setting the correct sag is crucial for maintaining optimal suspension performance. The ideal sag is typically between 25-30% of the shock’s total travel, but this may vary based on rider preference and terrain type.
- To adjust sag, first, measure the shock’s total travel.
- Have someone help you sit on the bike in your riding position.
- Measure the amount the shock compresses when you sit on it. Adjust the air pressure accordingly to achieve the correct sag.
High-Speed and Low-Speed Compression Adjustments
Some models of the ElevenSix Trunnion shock feature separate high-speed and low-speed compression adjustments. These settings allow you to fine-tune the shock’s responsiveness at different speeds.
- Low-Speed Compression: Adjust for slower impacts (e.g., pedaling forces). Turning it clockwise will increase compression and firm up the shock.
- High-Speed Compression: Adjust for faster impacts (e.g., big hits or drops). Adjusting this will help to prevent bottoming out when hitting large obstacles.
Maintenance of ElevenSix Trunnion Rear Shock
Regular maintenance of your ElevenSix Trunnion rear shock ensures optimal performance and longevity. Here are essential maintenance steps to follow:
Cleaning the Shock
- Use a clean cloth to wipe down the shock after every ride. Pay attention to the shock body, eyelets, and mounting points.
- Avoid using harsh chemicals or abrasives. A mild soap solution and a soft brush will be sufficient for removing dirt and grime.
Checking for Leaks
- Regularly inspect the shock for any signs of oil leakage around the seals. If you notice any leakage, it is time to service the shock.
Air Can Maintenance
The air canister on the ElevenSix Trunnion rear shock needs occasional servicing. This includes checking the air pressure, checking for damage, and replacing any worn seals. Push Industries recommends servicing the air can once every 25 hours of riding or once a season, whichever comes first.
Replacing Seals and Fluids
Over time, the seals and fluids inside the shock may degrade. Push Industries provides seal kits and recommended oils for servicing. If you’re unsure about servicing the shock yourself, consider taking it to a professional suspension technician.
Troubleshooting Common Issues with ElevenSix Trunnion Rear Shock
While the ElevenSix Trunnion rear shock is a high-quality component, riders may encounter some issues over time. Here are a few common problems and solutions:
1. Shock Is Not Rebounding Properly:
- Possible Cause: Rebound damping is too slow.
- Solution: Adjust the rebound dial counterclockwise to speed up the rebound. If the issue persists, check for any obstructions in the shock or replace the damper oil.
2. Shock Bottoming Out:
- Possible Cause: Too little air pressure or incorrect compression settings.
- Solution: Increase the air pressure in the shock and adjust the compression damping to a firmer setting. Re-check the sag to ensure it is within the recommended range.
3. Excessive Bouncing or Harsh Ride:
- Possible Cause: Incorrect compression damping settings.
- Solution: Adjust the low-speed and high-speed compression settings. If you are unsure of the ideal setting, start with the factory recommended settings and fine-tune based on your ride.
4. Leaking Oil:
- Possible Cause: Damaged seals or worn O-rings.
- Solution: Inspect the seals for wear and tear. Replace any damaged seals immediately. If oil continues to leak, have the shock serviced by a professional technician.
Customization and Optimization for Better Performance
The ElevenSix Trunnion rear shock is designed to be fully customizable to suit different riding styles and conditions. Some tips for further optimization include:
- Adjusting the Damping for Terrain: For downhill and aggressive riding, use a firmer compression setting. For trail or cross-country riding, opt for a softer setting to improve comfort and control.
- Upgrading Internal Components: Push Industries offers upgrade kits for internal components, such as the damper and air spring, allowing riders to further fine-tune their shock for specific performance needs.
- Testing Different Settings: Always test your settings after making adjustments, especially when altering air pressure or damping settings. It may take several rides to find the perfect balance.
Compatibility with Other Drivetrain Components
The ElevenSix Trunnion rear shock is compatible with most modern mountain bike frames and drivetrains. However, compatibility can depend on the shock’s length, stroke, and the mounting configuration of your frame. Before installing, ensure that the shock’s specifications match the requirements of your bike. Additionally, be aware of any frame-specific mounting systems that may require adapters or custom hardware.
By understanding these compatibility considerations, you can ensure that your ElevenSix Trunnion rear shock integrates seamlessly with your bike’s other components, optimizing overall performance.
Comparison with Similar Models
When comparing the ElevenSix Trunnion rear shock to other premium rear shocks on the market, a few key features set it apart:
- Customizable Tuning: The ElevenSix Trunnion offers a greater range of tunable options compared to other shocks in its class, providing more precise control over the ride.
- Durability: With its robust construction and high-end materials, the ElevenSix Trunnion is designed to withstand the harshest conditions, making it a reliable choice for serious riders.
- User-Friendly Setup: While offering a wide range of adjustments, the shock’s intuitive setup process makes it accessible even for riders who are not experienced with suspension tuning.
When comparing the ElevenSix Trunnion to shocks from other brands, it’s clear that its versatility and performance make it a top contender in the high-performance rear shock category.