The ElevenSix Trunnion [paid link] rear shock by Push Industries is an advanced suspension component designed to deliver superior performance, exceptional adjustability, and an overall enhanced ride quality. With its unique trunnion mounting system, the ElevenSix offers a smooth and controlled experience for riders seeking the best performance out of their mountain bikes. In this guide, we will explore the installation, adjustment, maintenance, and optimization of the ElevenSix Trunnion [paid link] rear shock, ensuring that you achieve the ultimate ride quality.
Tools Required
- 5mm Allen wrench [paid link]
- Torque wrench [paid link] (3-10 Nm)
- Shock pump
- Rags for cleaning
- Silicone-based lubricant
- 2mm Allen wrench [paid link] (for fine-tuning adjustments)
- Cleaning brush
Installation of the ElevenSix Trunnion Rear Shock
Step 1: Preparing the Bike and Shock
Before installing the ElevenSix Trunnion rear shock, ensure your bike frame is clean, dry, and free from debris. It is important to check that your frame is compatible with the trunnion mounting system. The ElevenSix Trunnion is designed to fit frames that support this specific mounting style. If you’re unsure, refer to your bike’s manufacturer specifications.
Step 2: Positioning the Shock on the Frame
Align the shock’s mounting hardware with the trunnion interface on your bike’s rear triangle. Ensure that the shock’s eyelet is positioned correctly to fit into the mounting point.
Step 3: Inserting the Mounting Hardware
Insert the appropriate hardware into the trunnion mount, making sure the shock is properly aligned with the frame. The hardware typically includes two bushings and bolts that must be inserted through the eyelets of the shock and into the frame’s suspension linkage.
Step 4: Tightening the Bolts
Using a torque wrench [paid link], tighten the bolts to the manufacturer’s recommended torque setting, usually around 8 Nm. Make sure not to overtighten the bolts, as this could damage the frame or shock. Always follow the specific torque specifications to prevent any undue stress on the components.
Step 5: Attaching the Air Can and Rebound Adjustment
Once the shock is mounted, use a shock pump to adjust the air pressure to your preferred riding conditions. Air pressure adjustments are essential to tailor the suspension to your weight and riding style. Next, set the rebound damping using the rebound adjuster knob on the shock. The ElevenSix Trunnion allows you to make fine adjustments for improved comfort and control.
Step 6: Final Check
After installation, ensure that the shock moves freely without any binding or abnormal resistance. Check all bolts for tightness one final time before moving the bike.
Adjusting the ElevenSix Trunnion Rear Shock
Air Pressure Adjustments
The air spring in the ElevenSix Trunnion rear shock can be tuned to suit your weight and preferred ride style. Using a shock pump, add or reduce air pressure to adjust for optimal ride performance. A higher air pressure will result in a firmer ride, ideal for aggressive riding, while lower air pressure will provide a plusher, more responsive feel.
For an ideal starting point, begin by setting the shock pressure to approximately 30-40% of the total travel sag. Fine-tune the pressure to match your riding preferences over time.
Rebound Damping
Rebound damping controls how quickly the shock returns to its original position after compression. The ElevenSix Trunnion offers easy adjustment with a dial on the shock. Turn the rebound knob clockwise for slower rebound or counterclockwise for faster rebound.
For a smoother ride, ensure the rebound is not too fast, as this can cause the shock to “kick back” and lose control. Conversely, a rebound set too slow can result in a sluggish, uncomfortable ride.
Compression Damping
Compression damping affects how the shock responds to impacts, such as bumps or drops. Adjusting the compression helps you find the right balance between a plush, forgiving ride and firm, controlled performance.
Use the high and low-speed compression dials to adjust the shock’s response to different riding conditions. Low-speed compression affects slower movements like pedaling forces, while high-speed compression is tuned for harder hits like large obstacles or jumps.
Maintenance and Troubleshooting the ElevenSix Trunnion Rear Shock
Regular Cleaning and Inspection
To maintain the optimal performance of your ElevenSix Trunnion rear shock, it is essential to keep it clean and free from debris. Regularly wipe down the shock’s exterior with a clean rag after rides, especially in muddy or dusty conditions. For a deeper clean, use a gentle brush to remove any dirt and grime from the shock’s components.
Inspect the shock’s bushings and mounts for any signs of wear or damage. If you notice any play or excessive movement, the bushings may need to be replaced. Always check the air can for any leaks and ensure the shock’s body remains free from cracks.
Rebuilding the Shock
Push Industries recommends performing a full rebuild on the ElevenSix Trunnion rear shock every 100-150 hours of riding or annually, whichever comes first. This involves removing the air can and servicing the internals, including replacing the seals and lubricating the shock’s components. A rebuild will ensure the shock maintains its smooth, consistent performance over time.
Troubleshooting Common Issues
- Shock Bottoming Out: If you find that the shock bottoms out during rides, this could be due to insufficient air pressure or incorrect compression settings. Increase the air pressure or adjust the compression damping to resolve the issue.
- Loss of Rebound Control: If the shock’s rebound is too fast or uncontrollable, check the rebound adjuster and fine-tune it. If the problem persists, the shock may need a rebuild to address internal issues with the damper.
- Excessive Stiction: If the shock feels sticky or sluggish, clean the shock’s body and check for dirt build-up around the seals. Re-lubricating the seals with silicone-based lubricant may help reduce stiction.
Customization and Optimization for Better Performance
The ElevenSix Trunnion rear shock can be further customized to match your personal riding style. Beyond the basic adjustments, such as air pressure, rebound, and compression, you can fine-tune the shock to achieve optimal performance.
- Volume Spacers: Adding or removing volume spacers inside the air can will alter the shock’s progressive spring curve. This can help prevent bottoming out or provide a smoother ride depending on your needs.
- Tune Settings: Push Industries offers custom tuning services, allowing riders to optimize the shock’s internal valving to match specific riding conditions or preferences. Custom tuning can improve performance for riders focused on aggressive trail riding, enduro, or cross-country racing.
Compatibility with Other Drivetrain Components
The ElevenSix Trunnion rear shock is designed to work seamlessly with a wide range of modern mountain bike frames. Its trunnion mount system is compatible with most frames that support this style of attachment. It is essential to ensure that your frame’s suspension linkage and rear triangle geometry are compatible with the shock’s dimensions and mounting interface.
The shock’s adjustability also makes it versatile [paid link] in various riding conditions, providing compatibility with different drivetrain setups. Whether you have a 1x or 2x drivetrain, the ElevenSix Trunnion can adapt to the forces generated during pedaling, enhancing your bike’s overall ride quality.
Conclusion
The ElevenSix Trunnion rear shock from Push Industries represents a premium suspension option for riders who demand the best in performance, customization, and durability. Through its straightforward installation process, multiple adjustment options, and comprehensive maintenance requirements, it offers a well-rounded solution for riders seeking an elevated riding experience. By following the guidelines in this article, you can ensure that your ElevenSix Trunnion rear shock continues to perform at its highest level, enhancing your bike’s overall ride quality for years to come.