The Öhlins TTX2Air rear shock is known for its superior performance, delivering smooth and controlled damping for various riding styles. Proper maintenance and adjustments are essential for keeping it in optimal working condition, ensuring that it performs at its best for years to come. This guide provides a detailed, step-by-step approach to maintaining, troubleshooting, and optimizing your TTX2Air rear shock.
Tools Required
- Torque wrench [paid link]
- Shock pump
- T30 Torx wrench [paid link]
- Small brush or soft cloth
- Cleaning solution (mild detergent)
- Rags or paper towels
- Öhlins-specific maintenance fluid (if required)
- Silicone spray (optional)
Installation of the TTX2Air Rear Shock
The installation process of the TTX2Air rear shock is straightforward, but proper handling is crucial to avoid damaging the shock or your bike frame.
- Remove the Old Shock: Use a T30 Torx wrench [paid link] to remove the bolts securing the old shock to the frame.
- Inspect the Mounting Hardware: Ensure the mounting hardware on both the shock and the bike frame are in good condition. If necessary, replace worn components such as bushings or bolts.
- Install the New Shock: Position the TTX2Air rear shock into the frame’s mounting points. Ensure the shock’s eyelet or mounting hardware is aligned correctly with the frame.
- Torque the Bolts: Tighten the shock mounting bolts to the manufacturer’s recommended torque settings, typically between 30-40 Nm, depending on the frame. Use a torque wrench [paid link] to ensure proper tightening.
- Check the Shock Alignment: After installation, check that the shock is aligned straight and seated properly.
Adjustment of the TTX2Air Rear Shock
Adjusting the TTX2Air rear shock for optimal performance involves tuning its rebound and compression damping settings, as well as setting the proper air pressure.
Rebound Adjustment
The TTX2Air rear shock has a rebound adjuster, which controls how fast the shock returns after being compressed.
- Locate the Rebound Adjuster: The rebound knob is typically positioned at the bottom of the shock body.
- Adjust the Rebound Speed: Turning the knob clockwise increases rebound damping (slower return), while turning it counterclockwise decreases rebound damping (faster return). Start with a neutral setting and fine-tune to your riding preference.
Compression Adjustment
The compression adjustment controls how the shock behaves under load, such as when hitting a bump or obstacle.
- Locate the Compression Adjuster: This is usually found on the shock body and can either be a low-speed or high-speed compression knob.
- Set Low-Speed Compression: Adjust the low-speed compression for general trail or downhill riding. Turn clockwise to increase compression and reduce sag, or counterclockwise for a softer feel.
- Set High-Speed Compression: High-speed compression is for impacts or large hits. Adjusting this controls how the shock responds to big impacts, ensuring comfort and control.
Air Pressure
The TTX2Air rear shock requires the correct air pressure to provide the right amount of support.
- Determine the Correct Air Pressure: The recommended air pressure will depend on your weight, riding style, and shock settings. Use a shock pump to set the correct pressure, typically between 200-300 psi.
- Fine-Tune Pressure: Test the shock’s performance after adjusting the air pressure. If the shock bottoms out or feels too soft, increase the pressure slightly. If it feels too stiff or lacks movement, decrease the pressure.
Maintenance of the TTX2Air Rear Shock
Regular maintenance is necessary to ensure that the TTX2Air continues to perform optimally. Follow these steps to maintain the shock’s performance and longevity.
Cleaning the Shock
Regular cleaning is essential to remove dirt and debris that can accumulate on the shock during use.
- Clean the Shock Body: Use a soft cloth or brush to gently remove dirt and grime from the shock body. Avoid using harsh chemicals that could damage the shock’s seals.
- Clean the Eyelets: Ensure the mounting eyelets are free from dirt. Use a small brush and mild detergent to clean them, then wipe them down with a clean rag.
Lubing the Seals
Lubricating the shock seals helps prevent wear and tear, ensuring smooth suspension movement.
- Use Silicone Spray: Apply a light coating of silicone spray to the shock’s seals and bushings. Avoid using oil-based lubricants as they can attract dirt and cause excessive wear.
- Check for Leaks: Inspect the seals regularly for any signs of oil leakage. If you notice any, the seals may need to be replaced or serviced.
Air Spring Maintenance
The TTX2Air uses an air spring that should be checked for performance regularly.
- Check for Leaks: Inspect the air spring for any visible damage or air leakage. If the shock feels overly soft or difficult to adjust, there may be a leak.
- Reinflate as Needed: Regularly check the air pressure using a shock pump, and refill it as needed. Over time, air pressure can naturally decrease.
Troubleshooting Common Issues with the TTX2Air Rear Shock
While the TTX2Air rear shock is known for its reliability, issues can still arise. Here are some common problems and solutions.
Issue 1: Shock Bottoming Out
- Cause: Low air pressure or excessive compression damping.
- Solution: Check and increase the air pressure to the recommended level. Also, adjust the compression damping to ensure it isn’t too soft.
Issue 2: Shock Feeling Too Stiff
- Cause: High air pressure or excessive compression damping.
- Solution: Decrease the air pressure slightly and back off the compression damping to make the ride feel more plush.
Issue 3: Rebound Too Slow or Fast
- Cause: Incorrect rebound setting.
- Solution: Adjust the rebound knob to your preference. If it’s too slow, turn it counterclockwise to increase the rebound speed. If it’s too fast, turn it clockwise to slow it down.
Customization and Optimization for Better Performance
To get the most out of your TTX2Air rear shock, consider optimizing it based on your riding style and terrain.
Fine-Tuning for Trail Riding
- Lower Air Pressure: Slightly decrease air pressure for more responsiveness and a plush feel, ideal for trail riding.
- Increase Low-Speed Compression: Adjust the low-speed compression to prevent the shock from wallowing during climbs or pedaling.
Fine-Tuning for Downhill Riding
- Increase Air Pressure: Higher air pressure offers more support during aggressive riding and impacts.
- Increase High-Speed Compression: Tighten the high-speed compression to avoid excessive bottoming out when hitting large obstacles.
Compatibility with Other Drivetrain Components
The Öhlins TTX2Air rear shock is designed to work with most modern mountain bike frames and drivetrain systems. However, it is essential to confirm compatibility with your bike’s suspension platform, as some frame designs may have specific requirements for rear shock mounting.
Before purchasing, ensure that the eyelet size and shock length match the specifications of your bike frame. Additionally, verify the shock’s travel and damping options to ensure it complements your drivetrain setup and riding preferences.
Conclusion
Maintaining your TTX2Air rear shock is crucial to ensuring it performs optimally, whether you’re tackling trails or racing downhill. Regular cleaning, lubrication, and the proper adjustment of air pressure, compression, and rebound settings will help you enjoy a smoother, more responsive ride. Troubleshooting common issues and customizing the shock based on your riding style can enhance your overall riding experience. By following these maintenance tips and keeping an eye on compatibility, you can maximize the performance and lifespan of your Öhlins TTX2Air rear shock.