The ElevenSix Trunnion [paid link] Rear Shock from Push Industries is designed for high-performance mountain biking. To ensure its longevity and optimal performance, regular preventative maintenance is crucial. This guide will walk you through the key maintenance tasks for your ElevenSix Trunnion [paid link] shock, covering installation, adjustments, troubleshooting, and performance optimization. Whether you are a beginner or an experienced rider, this guide will help you keep your shock in top condition.

Tools Required

• 5mm and 6mm Allen wrenches [paid link]
• Torque wrench [paid link]
• Suspension fluid (as recommended by Push Industries)
• Grease (specifically designed for suspension parts)
• Clean rag or towel
• Suspension pump (compatible with your shock’s valve)
• Oil drain pan
• Shock mounting hardware (if replacing)
• O-rings (if replacing)
• Seals (if necessary)

Installation of the ElevenSix Trunnion Rear Shock

Step 1: Remove the Old Shock

Before installing the ElevenSix Trunnion rear shock, you must remove the old shock from your bike. This process involves detaching both the upper and lower shock mounting bolts. It’s important to keep track of any washers, spacers, or bearings as they may need to be reused.

Step 2: Apply Grease

Before installing the new shock, apply a thin layer of grease to the shock mounts and hardware. This ensures a smoother installation and helps prevent seizing or corrosion over time.

Step 3: Mount the Shock

Position the shock in the rear triangle of your bike, aligning the upper and lower mounts with the frame. Insert the mounting bolts and tighten them with the appropriate torque settings. Typically, you should torque the bolts to manufacturer specifications to avoid over-tightening or under-tightening, which could affect the shock’s performance and safety.

Step 4: Set the Air Pressure

Once the shock is mounted, use a suspension pump to set the recommended air pressure for your weight and riding style. The pressure will depend on factors like the rider’s weight, type of riding, and desired suspension feel. Adjust the pressure carefully and check the shock’s sag to ensure it’s properly set up.

Adjustment and Customization

Rebound and Compression Adjustments

The ElevenSix Trunnion rear shock offers both rebound and compression adjustments, allowing for fine-tuning of the suspension performance. The rebound dial controls how quickly the shock returns after compression, while the compression dial adjusts the resistance to the shock’s movement during compression.

• Rebound Adjustment: Turn the rebound dial clockwise to slow down the rebound or counterclockwise to speed it up. Adjust this setting based on trail conditions and personal preferences.
• Compression Adjustment: The compression dial adjusts the shock’s resistance during compressive forces. For smoother trails, you may want to soften the compression, while rougher terrain calls for firmer compression settings. Experiment with different settings to find the balance that suits your riding style.

Fine-Tuning the Shock

To further optimize the ElevenSix Trunnion shock for your riding preferences, you may consider adjusting the high- and low-speed compression settings. This is ideal for riders who want to fine-tune the shock’s performance based on specific trail conditions, whether it’s for technical downhill or cross-country riding.

• Low-Speed Compression: This adjusts the shock’s response to slower, high-force impacts, such as landing from a jump. Increasing low-speed compression will make the shock firmer.
• High-Speed Compression: This affects the shock’s reaction to rapid, high-energy impacts, like hitting rock gardens or roots. Adjusting this can help control harsh hits and prevent bottoming out.

Regular Maintenance for Longevity

Cleaning and Inspection

To ensure the longevity of your ElevenSix Trunnion shock, regular cleaning is essential. After each ride, clean the shock’s exterior with a damp rag to remove dirt, mud, and debris that could cause friction and wear on the seals.

• Inspect the Shock: Carefully inspect the shock for any signs of leakage, dents, or cracks. Even minor damage can lead to performance issues down the line. If you notice any damage, it’s best to have the shock serviced or replaced.

Seals and O-Rings

The seals and O-rings in your ElevenSix Trunnion rear shock are vital to keeping it sealed and functioning smoothly. Over time, these parts can wear down, leading to air and oil leaks. It’s recommended to replace the seals every 100-150 hours of riding, depending on the conditions. When replacing the seals, make sure to clean all components thoroughly and apply fresh suspension grease to the new parts.

Air Can Service

The air can inside your shock holds the air pressure, and regular servicing is necessary to maintain optimal performance. Every 50-100 hours of riding, consider performing an air can service. This involves draining the shock, replacing the air can seals, and adding fresh oil to ensure smooth operation.

Troubleshooting Common Issues

Shock Not Rebounding Properly

If your ElevenSix Trunnion shock is not rebounding correctly, it may be due to incorrect rebound settings, low air pressure, or internal damage. To troubleshoot:

• Check the rebound dial and adjust it to a faster or slower setting.
• Verify the air pressure with a suspension pump and adjust if necessary.
• If these adjustments do not resolve the issue, the shock may need to be serviced.

Unusual Noises from the Shock

If you hear any unusual noises from the shock, such as squeaking or clunking sounds, it could be caused by lack of lubrication, worn bearings, or dirt and debris inside the shock mount. Clean and lubricate the shock mounts, and inspect the bearings. If the issue persists, the shock may require a rebuild.

Leaking Oil or Air

If you notice oil or air leaking from your shock, it’s likely due to damaged seals or worn O-rings. Inspect the seals and replace them if necessary. Ensure that the shock is properly sealed before reinstalling it on your bike.

Comparison with Similar Models

While the ElevenSix Trunnion rear shock is a high-performance option, it’s useful to compare it with other models in the market to help riders make informed decisions.

• Fox Float X2: Known for its versatility and adjustable settings, the Fox Float X2 is a competitive alternative to the ElevenSix Trunnion. It offers similar high- and low-speed compression adjustments, but the ElevenSix Trunnion is often preferred by riders who prioritize customizability and fine-tuning.
• RockShox Super Deluxe: The Super Deluxe is another strong contender, particularly for those who prefer a more straightforward shock with less emphasis on fine-tuning. While it doesn’t offer the same level of customization as the ElevenSix, it provides excellent performance for most riders.

Compatibility with Other Drivetrain Components

The ElevenSix Trunnion rear shock is designed to be compatible with a wide range of bike frames, provided they have the necessary mount configuration. Ensure that your bike’s rear triangle is compatible with the shock’s dimensions and mounting system. Additionally, pairing this shock with a high-performance drivetrain, like those from SRAM or Shimano, will provide a more seamless riding experience. However, always check with the manufacturer for specific compatibility details to ensure proper fitment.

Regular maintenance and proper installation of the ElevenSix Trunnion rear shock will keep it functioning optimally for years to come. With proper care and adjustment, this shock will continue to provide exceptional performance, whether you’re riding technical trails or tackling rough terrain.