The Öhlins STX22 Air Rear Shock is an exceptional suspension component designed for high-performance mountain biking. With its advanced air spring and damping system, it provides excellent ride quality, control, and comfort on rugged trails. However, to maintain optimal performance, regular maintenance and a few essential tweaks are necessary. This guide provides you with effective DIY hacks to extend the lifespan of your STX22 Air Rear Shock, ensuring you get the most out of your ride.
Installation of the STX22 Air Rear Shock
Proper installation is crucial for ensuring that the STX22 Air Rear Shock performs at its best. Follow these steps for a flawless setup:
1. Prepare Your Bike
Before installing the shock, make sure your bike frame is properly prepared. Ensure the rear triangle is clean and free of debris. This prevents any dirt from contaminating the shock mounting areas and ensures a tight and secure fit.
2. Mounting the Shock
- Align the shock eyelet with the rear shock mount on the frame.
- Insert the shock bolt and tighten it until it’s secure. Be careful not to overtighten as it could damage the shock or the frame.
- Use a torque wrench [paid link] to tighten the bolts to the recommended torque settings, typically between 6-8 Nm for most frames, depending on your bike’s specifications.
3. Set the Sag
Setting the correct sag is vital to ensure optimal suspension performance. For the STX22 Air, aim for a sag of around 25-30% of the shock’s total stroke length. To do this:
- Press down on the bike while seated and observe the amount the shock compresses.
- Adjust the air pressure until the correct sag is achieved. Use the Öhlins recommended air pressure chart to help guide you.
4. Test Ride
After installation, take the bike for a test ride. Pay attention to the suspension’s response. If you notice any odd noises or changes in handling, recheck the installation and adjust as necessary.
Regular Maintenance of the STX22 Air Rear Shock
To keep your STX22 Air Rear Shock functioning smoothly, regular maintenance is essential. Here are some steps to follow:
1. Clean the Shock
Regular cleaning is one of the simplest yet most effective ways to extend the life of your rear shock. After each ride, clean the shock with a damp cloth to remove any dirt, grime, or debris that may have accumulated. Be sure to wipe down the shock stanchion as well to avoid wear on the seals.
2. Inspect the Seals
Check the shock’s seals regularly for wear and tear. If you notice any visible damage, such as cracks or tears, it’s essential to replace them to prevent air or oil leakage. Seals play a critical role in maintaining the shock’s performance, so keeping them in good condition is paramount.
3. Lubricate Moving Parts
The STX22 Air features a unique damper and air spring system. Lubricating the moving parts, including the damper shaft and the air valve, can help reduce friction and ensure smoother suspension movement. Use a light, silicone-based lubricant and apply it sparingly to avoid excess build-up.
4. Check Air Pressure Regularly
The air spring inside the STX22 is adjustable, and maintaining the correct air pressure is vital for achieving the right ride feel. Over time, air pressure can drop, leading to a decrease in performance. Check and adjust the air pressure according to the rider’s weight and riding style before each ride.
Troubleshooting Common Issues
Even with regular maintenance, issues can occasionally arise. Here are some common problems with the STX22 Air Rear Shock and how to troubleshoot them:
1. Loss of Air Pressure
If you notice that the shock feels less responsive or bottoms out too easily, it could be due to a loss of air pressure. Check the air pressure using a shock pump and top it up if necessary. If the shock continues to lose air, inspect the air valve for leaks. In some cases, the shock’s air seals may need replacing.
2. Unwanted Noise or Creaking
If your shock starts making a creaking or squeaking noise, it’s likely due to dry seals or dirt buildup. Clean the shock thoroughly, paying particular attention to the stanchions and seals. Apply a light lubricant to the moving parts and test the shock to see if the noise disappears.
3. Poor Rebound or Compression Adjustment
If you find that the rebound or compression adjustments are not providing the desired performance, it may be due to contamination in the damping system. Check the rebound and compression adjusters for any dirt or debris, and clean them. If the adjustments still feel off, consider servicing the shock.
Customization and Optimization for Better Performance
To maximize the performance of your STX22 Air Rear Shock, consider making the following adjustments and optimizations:
1. Adjusting Rebound and Compression
Fine-tuning the rebound and compression settings can significantly improve your riding experience. Adjust the rebound to control how quickly the shock returns to its original position after compression. On the other hand, adjusting the compression helps to fine-tune the shock’s response to bumps and impacts. Experiment with different settings to find the balance that suits your riding style.
2. Tuning Air Pressure
Adjusting the air pressure according to your riding style and terrain type is one of the most effective ways to enhance performance. Lighter riders might prefer lower air pressures for a softer feel, while heavier riders may need higher pressures to prevent bottoming out. Don’t forget to check air pressure frequently, especially after long rides or heavy use.
3. Upgrading to a Custom Spring
While the STX22 Air shock is already equipped with an excellent air spring, some riders may prefer the feel of a coil spring for certain riding conditions. If this is the case, you can consult Öhlins to see if a compatible coil spring option is available for your specific model.
Comparison with Similar Models
While the STX22 Air Rear Shock stands out due to its advanced features and precision engineering, comparing it to similar models can help you understand its unique advantages:
1. STX22 Air vs. TTX Air
The TTX Air offers more precise adjustability compared to the STX22. While the STX22 is an excellent choice for recreational riders, the TTX Air is designed for more aggressive riding and provides enhanced tuning options, especially in terms of rebound and compression. However, the TTX Air comes at a higher price point.
2. STX22 Air vs. Fox Float X2
The Fox Float X2 is another popular air shock in the market, known for its high-level performance and versatility. While it competes with the STX22 in terms of adjustability, the Öhlins shock is often praised for its smoother, more controlled damping characteristics, especially in rough terrain.
Compatibility with Other Drivetrain Components
The STX22 Air Rear Shock is compatible with a wide range of mountain bike frames, but it is important to ensure that your frame’s suspension design and shock mount dimensions match those of the STX22. Additionally, the shock’s performance can be optimized by pairing it with high-quality drivetrain components like those from Shimano or SRAM. Ensure that your bike’s overall geometry complements the shock for a balanced and smooth riding experience.
By taking care of your STX22 Air Rear Shock, performing regular maintenance, and optimizing it for your riding style, you can ensure that it performs at its best for years to come.