The Öhlins TTX22M Coil [paid link] rear shock is a premium component designed for high-performance bicycles. Known for its exceptional damping performance, adjustability, and durability, the TTX22M is a popular choice among serious riders who demand precision and control on demanding trails. In this comprehensive guide, we will explore the installation, maintenance, troubleshooting, customization, and performance optimization of the TTX22M Coil [paid link] shock. We will also compare it with similar models to help you make an informed choice.

Installation of the TTX22M Coil Rear Shock

Tools Required

• 8mm hex wrench
• Torque wrench [paid link] (for precise tightening)
• 4mm hex wrench
• 10mm spanner wrench (for adjusting preload)
• Shock pump (for setting air pressure)
• Clean rags (for cleaning components)
• Lubricant (light grease)

Step-by-Step Installation

1. Prepare the Bike and Shock: Start by ensuring that your bike is secure and stable. Use a bike stand [paid link] to elevate the rear of the bike for easy access to the shock. If you are replacing an existing rear shock, carefully remove it by unscrewing the mounting bolts.
2. Install the Shock into the Frame: Align the TTX22M with the shock mount on the frame. Ensure that the shock’s mounting hardware is correctly oriented and that the eyelet fits securely. Tighten the mounting bolts using the appropriate torque settings as per the manufacturer’s specifications.
3. Set the Preload: Using a 10mm spanner wrench, adjust the preload on the shock’s coil spring. The preload determines the initial compression of the spring and affects the overall suspension feel. It’s essential to set this correctly for optimal performance.
4. Check the Suspension Linkage: Make sure the shock is properly aligned with the frame’s suspension linkage. Any misalignment can lead to poor suspension performance and premature wear.
5. Adjust the Damping Settings: Before riding, it is crucial to set the rebound and compression damping to match your riding style and terrain. The TTX22M features multiple adjustments for both high-speed and low-speed compression, as well as rebound damping.
6. Final Checks: Double-check all mounting bolts for tightness, ensuring that the shock is securely installed. Pump the shock to the desired pressure, if applicable, and test the suspension for smooth movement.

Maintenance of the TTX22M Coil Rear Shock

Regular maintenance is essential to ensure the longevity and performance of your TTX22M Coil shock. Follow these guidelines to keep your shock in optimal condition.

Cleaning and Lubrication

• Clean the shock after every ride to remove dirt, mud, and debris. Use a damp cloth or rag, avoiding harsh cleaning agents that could damage the shock’s seals.
• Lubricate the shock’s eyelet and any moving parts to prevent wear and ensure smooth operation. Apply a light coat of lubricant to the shock’s mounting hardware, but avoid over-lubricating as this can attract dirt.

Checking for Leaks and Seal Maintenance

• Inspect the shock for any signs of oil leakage around the seals. If you notice any leaking fluid, it could indicate worn-out seals that need replacement.
• Periodically inspect the shock’s air canister (if applicable) and coil for damage or wear. If you find any damage, contact a qualified technician for seal replacement or servicing.

Replacing the Coil Spring

• Over time, the coil spring may lose its tension or wear out. If this happens, you can replace the spring with one that better suits your riding style and body weight.
• To replace the coil spring, remove the preload adjuster, carefully remove the spring, and install the new one. Re-adjust the preload setting accordingly.

Troubleshooting Common Issues

Despite the durability of the TTX22M Coil rear shock, you may encounter a few common issues. Below are some troubleshooting tips to resolve these problems.

Issue 1: Shock Feels Too Soft or Too Hard

Cause: Incorrect spring preload or improper coil spring tension.

Solution: Check the preload setting and adjust it according to your weight and riding style. You may need to switch to a different coil spring with a different spring rate if the current one is too soft or too hard.

Issue 2: Rebound Not Performing Correctly

Cause: Incorrect rebound damping setting.

Solution: Adjust the rebound damping to suit your riding preferences. If the shock rebounds too quickly or too slowly, fine-tune the rebound knob until you achieve the desired rebound speed.

Issue 3: Loss of Damping Performance

Cause: Contaminated oil or worn-out seals.

Solution: If you notice a significant loss of damping performance, the oil may need to be changed, or the seals may need to be replaced. In such cases, it is advisable to have the shock serviced by a professional technician.

Customization and Optimization for Better Performance

To optimize the performance of your TTX22M Coil shock, several factors need to be considered, including proper setup, adjustments, and compatibility with your bike’s other components.

Adjusting Compression and Rebound Damping

The TTX22M offers both high-speed and low-speed compression adjustments. Fine-tuning these settings will allow you to dial in the shock for various trail conditions. For example, a firmer compression setting will help with stability on rough terrain, while a softer setting will improve comfort on smoother trails.

Rebound damping should also be adjusted based on your preferences. A faster rebound allows the shock to return more quickly after compression, which is ideal for smoother terrain. A slower rebound is better for rougher conditions, ensuring better control and reducing the risk of bottoming out.

Coil Spring Selection

Choosing the correct coil spring for your body weight and riding style is crucial. Öhlins offers a range of coil springs with different rates. If you often ride aggressive trails or downhill courses, you may want a stiffer spring. On the other hand, for lighter riders or cross-country riders, a softer spring might be more suitable.

Setting Sag

Setting the correct sag is critical for proper suspension performance. Generally, 25-30% sag is recommended for the TTX22M Coil shock. Use a shock pump to set the air pressure (if applicable) and check the sag by sitting on the bike and measuring the shock’s compression.

Comparison with Similar Models

When considering the TTX22M Coil rear shock, it’s important to understand how it compares with other similar models, especially in terms of performance, adjustability, and cost.

TTX22M vs. TTX Air

• Weight: The TTX22M Coil is heavier than the TTX Air due to the coil spring, making it less ideal for weight-conscious riders or those who prioritize climbing performance.
• Performance: The TTX22M offers more consistent damping performance, especially on rough and technical terrain. The coil spring provides more predictable and reliable suspension, making it better suited for aggressive downhill and enduro riding.
• Adjustability: Both shocks offer excellent adjustability, but the TTX Air offers a more compact and lightweight design with easy air pressure adjustments, making it a good choice for riders who prioritize weight savings.

TTX22M vs. DHX2 Coil Shock

• Design: The TTX22M features a more refined design, with advanced technology and damping options that deliver smoother performance. The DHX2, on the other hand, has a slightly more basic design but is still very reliable.
• Customization: The TTX22M Coil shock provides more tuning options for compression and rebound, offering better overall customization for different types of riders and terrain.

Understanding Compatibility with Other Drivetrain Components

The TTX22M Coil rear shock is designed to work with a wide variety of mountain bike frames and drivetrain systems. However, it’s important to ensure compatibility with your bike’s suspension linkage and rear triangle. Some frames may require specific shock mounting hardware to fit the TTX22M, so always check compatibility before purchasing.

Additionally, make sure the shock’s travel and geometry match your bike’s design. The TTX22M is ideal for bikes with 150mm to 170mm of rear suspension travel, so verify that your frame falls within this range for optimal performance.