Rebuilding your ElevenSix Trunnion [paid link] rear shock from Push Industries can seem like an intimidating task, but with the right tools and approach, it’s entirely manageable. Regular maintenance is crucial for ensuring your shock performs at its best, extending its lifespan, and enhancing your overall riding experience. In this guide, we’ll walk you through the process of rebuilding your ElevenSix Trunnion [paid link] rear shock at home, from disassembly and cleaning to reassembly and adjustment.
Tools Required
To successfully rebuild the ElevenSix Trunnion rear shock, you’ll need the following tools:
- Torque wrench [paid link]
- Shock pump
- Hex wrenches (typically 3mm, 5mm, and 8mm)
- Oil and grease (shock-specific)
- Cleaning solvent
- Rags
- Seal kit (specific to ElevenSix Trunnion)
- Needle-nose pliers
- 8mm spanner (for valve removal)
- Shock disassembly tool (Push Industries recommended)
- Replacement O-rings and seals
Ensure that you have these tools prepared before starting your rebuild. Having everything at hand will make the process smoother and more efficient.
Disassembly of the ElevenSix Trunnion Rear Shock
Step 1: Remove the Shock from the Bike
To begin the rebuild process, you need to remove the shock from the bike. Use the appropriate hex wrenches to remove the mounting bolts. Be cautious not to lose any hardware and store it in a safe place for reassembly.
Step 2: Depressurize the Shock
Before proceeding, make sure to depressurize the shock using a shock pump. This step is vital to ensure safety while handling the shock. Simply attach the shock pump and release any air from the air chamber. Once all pressure has been released, you can safely begin the disassembly process.
Step 3: Remove the Trunnion Mount
To access the internals of the shock, you’ll need to remove the trunnion mount. Depending on the specific model, this may require the use of a specialized shock disassembly tool. Carefully loosen the fasteners using a torque wrench [paid link] to prevent any damage to the threads.
Cleaning and Inspection
Step 1: Clean the Shock Body
After disassembling the shock, thoroughly clean the shock body using a cleaning solvent. This will remove any dirt, grease, or grime that has accumulated during use. Pay special attention to the sealing areas, as any debris can cause issues with reassembly and performance.
Step 2: Inspect Internal Components
Examine the internal components such as the damper shaft, piston, and seals for wear or damage. If you notice any significant wear or damage, it’s essential to replace these parts with fresh components from the seal kit. This will ensure optimal performance after reassembly.
Step 3: Inspect the Air Can
Check the air can for any damage or wear, especially around the O-rings and seals. Replace any worn or damaged seals immediately to prevent air leakage during the shock’s operation.
Reassembly of the ElevenSix Trunnion Rear Shock
Step 1: Lubricate Components
Lubricate all moving parts, including the damper shaft, piston, and O-rings, with the appropriate oil. This ensures that the shock operates smoothly and prevents internal friction. Use a light coat of shock oil for this purpose—don’t over-lubricate, as excess oil can attract dirt and debris.
Step 2: Install New Seals and O-rings
Using the new seals and O-rings from the seal kit, carefully install them onto the shock components. Pay close attention to the orientation of each part, as installing them incorrectly could lead to leaks or reduced performance. Make sure that all seals are seated properly to ensure a tight and secure fit.
Step 3: Reassemble the Shock Body
Carefully reassemble the shock body by first installing the damper shaft and piston back into the shock body. Tighten the components gradually with a torque wrench to ensure they are secure, but avoid over-tightening, as this can damage the components.
Step 4: Reattach the Trunnion Mount
Once the internal components are assembled and secure, reinstall the trunnion mount. Tighten the fasteners to the manufacturer’s recommended torque specification. This will ensure that the shock is securely mounted to the frame once reinstalled.
Air Chamber Setup and Pressure Adjustment
Step 1: Add Air to the Shock
Use a shock pump to add air to the shock’s air chamber. The recommended air pressure varies depending on your weight, riding style, and specific shock settings. Start by adding air to the desired pressure, checking frequently to ensure that the shock reaches the desired pressure without exceeding the recommended limits.
Step 2: Set the Rebound and Compression Damping
With the shock reassembled and pressurized, set the rebound and compression damping adjustments to the manufacturer’s recommended settings. These settings can typically be found in the shock’s manual or on the manufacturer’s website. If you don’t have access to the recommended settings, start with a neutral setting and fine-tune based on personal preference.
Step 3: Test the Shock
Before reinstalling the shock on your bike, compress the shock by hand to ensure smooth operation and verify that no air leaks are present. If the shock feels stiff or lacks rebound, adjust the settings accordingly until you’re satisfied with the performance.
Troubleshooting Common Set-Up Issues
Air Leaks
If you notice air leaking from the shock, double-check that all seals are correctly installed and that no debris is preventing a proper seal. Also, inspect the Schrader valve to ensure it’s functioning properly.
Inconsistent Rebound
If your rebound is inconsistent, check the oil levels and condition of the damper. Insufficient oil or damaged components can lead to poor rebound performance. If necessary, replace the damper shaft or piston.
Poor Compression Performance
If the compression feels too soft or too firm, ensure that the compression damper is properly adjusted and that all components are clean and well-lubricated. A clogged compression valve or incorrect oil levels can lead to improper compression settings.
Customization and Optimization
To optimize the performance of your ElevenSix Trunnion rear shock, consider customizing the settings based on your specific riding conditions. For aggressive downhill riding, you may want a higher compression setting for more control, while cross-country riders may prefer a softer setting for better comfort. Additionally, experimenting with different rebound settings can help you find the perfect balance between responsiveness and comfort.
Adjusting for Weight and Riding Style
The air pressure in your shock should be adjusted according to your body weight and riding style. For heavier riders or those who prefer a more aggressive riding style, higher air pressure will help prevent bottoming out. Lighter riders may prefer a softer setup for better comfort and traction. Fine-tuning the air pressure is a key aspect of shock performance and can greatly influence your ride.
Comparison with Similar Models
The ElevenSix Trunnion rear shock is a high-end shock known for its exceptional performance, offering both comfort and control in varied riding conditions. Compared to other shocks on the market, such as the Fox DHX2 or RockShox Super Deluxe, the ElevenSix stands out due to its custom tuning options, high-quality construction, and increased durability. Push Industries’ focus on shock customization and rider-specific tuning makes the ElevenSix a versatile [paid link] choice for riders seeking precise suspension adjustments and long-lasting performance.
Understanding Compatibility with Other Drivetrain Components
The ElevenSix Trunnion rear shock is compatible with a wide range of mountain bike frames, especially those designed for aggressive riding. While it’s essential to ensure the shock fits your bike’s geometry and mounting system, it is generally compatible with most modern 27.5″ and 29″ bikes. Make sure to verify the specific dimensions of the trunnion mount before purchasing, as some bikes may require adapters or additional components for proper installation.
By following this detailed guide, you should be able to rebuild your ElevenSix Trunnion rear shock with confidence. With proper maintenance and adjustments, your shock will continue to perform at its peak [paid link], providing a smooth and controlled ride every time.