The STX22 Coil [paid link] Rear Shock from Öhlins is a high-performance component designed to provide superior comfort, control, and durability for mountain bike riders. With the right maintenance, you can ensure that your shock remains in optimal condition and performs at its best for years. This guide will walk you through installation, adjustment, maintenance, troubleshooting, and customization of the STX22 Coil [paid link], helping you maximize its performance.

Installation of the STX22 Coil Rear Shock

Installing the STX22 Coil Rear Shock requires precision and care to ensure it is fitted correctly for maximum performance and safety. Follow these steps carefully for a successful installation:

1. Prepare Your Bike Frame: Before installing the shock, make sure the rear triangle of your bike frame is clean and free of debris. Check for any worn-out or damaged components in the suspension linkage, as they could affect the performance of your new shock.
2. Remove the Old Shock (if applicable): Use a wrench or shock removal tool to detach the existing shock from your bike. Keep the mounting bolts in a safe place, as you’ll need them for the new shock.
3. Install the STX22 Coil Rear Shock: Align the shock’s eyelets with the mounting points on the frame. Insert the bolts through the mounting points and tighten them securely. Be sure to check the manufacturer’s recommended torque settings to prevent over-tightening, which can damage the shock or bike frame.
4. Check the Fit: After installation, verify that the shock is properly aligned with the frame. There should be no play in the shock, and it should move freely when compressed and released.

Adjustment of the STX22 Coil Rear Shock

Proper adjustment of the STX22 Coil is crucial for achieving optimal comfort and performance. This rear shock offers several adjustable settings to fine-tune your ride:

Preload Adjustment

The preload setting controls the initial compression of the coil spring. This adjustment determines the overall ride height and how the shock responds to light impacts.

• How to Adjust: Use a spanner wrench to turn the preload collar, adjusting it to increase or decrease the coil spring’s preload. Turning clockwise adds preload (stiffens the spring), while turning counterclockwise reduces preload (softens the spring).
• When to Adjust: You should adjust the preload to match your rider weight and the terrain you’ll be riding on. Lighter riders may prefer less preload, while heavier riders may need more to prevent bottoming out.

Rebound Adjustment

The rebound control on the STX22 Coil adjusts the speed at which the shock returns to its original position after compression.

• How to Adjust: Locate the rebound adjuster at the bottom of the shock. Turn it clockwise to slow the rebound, or counterclockwise to speed it up.
• When to Adjust: Adjust the rebound for different trail conditions. If the shock returns too quickly, you may feel like you’re bouncing after hitting a bump. If it returns too slowly, the shock may feel sluggish.

Compression Damping Adjustment

This feature helps control how the shock compresses under load, making it easier to manage big hits and technical sections.

• How to Adjust: The STX22 Coil comes with a low-speed compression adjustment, which can be adjusted by turning the knob near the shock’s body. Turning clockwise will stiffen the shock, while counterclockwise will soften it.
• When to Adjust: If you’re riding on rough trails or tackling technical descents, you may need to stiffen the compression damping. On smoother trails, you can soften it for better comfort and control.

Maintenance of the STX22 Coil Rear Shock

To keep your STX22 Coil performing at its peak [paid link], regular maintenance is essential. Follow these steps for a maintenance schedule to ensure longevity and smooth operation:

Cleaning

• How to Clean: After each ride, wipe down the shock with a clean, damp cloth to remove dirt and debris. Be sure to clean the shock body and the coil spring thoroughly.
• Important Tip: Avoid using high-pressure water on the shock as it can force dirt and moisture into sensitive internal components.

Lubrication

• Lubricating the Shock: Apply a light coat of lubrication to the shock’s mounting points to prevent wear. This also helps to ensure the shock moves freely during operation.
• When to Lubricate: Lubricate your shock at least once every few months or more often if you ride in wet conditions.

Servicing the Coil Spring

• Checking for Wear: Inspect the coil spring regularly for any signs of wear or damage. Over time, coil springs can lose their ability to hold the proper preload, especially if they are subjected to frequent heavy use.
• Spring Replacement: If the spring shows any visible signs of wear or damage, it’s time to replace it with a new one. Always ensure the replacement coil is compatible with your STX22 shock.

Internal Servicing

• When to Service Internals: Internal servicing is generally required after extensive use. This includes disassembling the shock, inspecting, and replacing seals, oil, and other internal components.
• Servicing Interval: Typically, it’s recommended to service the internals every 50-100 hours of riding, depending on the intensity of use.

Troubleshooting Common Issues with the STX22 Coil Rear Shock

Even with proper maintenance, you may encounter some common issues with your STX22 Coil. Here’s how to troubleshoot and fix them:

1. Shock Bottoming Out

• Possible Cause: Insufficient preload or inadequate compression damping can cause the shock to bottom out during hard hits.
• Solution: Increase the preload and adjust the compression damping to a stiffer setting to prevent bottoming out.

2. Excessive Rebound

• Possible Cause: If the shock is rebounding too quickly, you may feel like you’re bouncing off the ground after a compression.
• Solution: Adjust the rebound to a slower setting to allow the shock to return to its neutral position more gradually.

3. Shock Not Compressing Smoothly

• Possible Cause: Dirt or debris inside the shock or improper lubrication could cause the shock to feel stiff or jerky during compression.
• Solution: Clean and lubricate the shock regularly. If the problem persists, internal servicing may be required.

Customization and Optimization of the STX22 Coil

To get the most out of your STX22 Coil Rear Shock, it’s important to tailor its performance to your riding style and terrain. Here are a few tips for customization:

Coil Spring Choice

• Customizing the Coil: Öhlins offers a variety of coil springs with different spring rates. You can customize your ride by choosing the right spring for your weight and riding style. For aggressive riders or those who ride on rough trails, a stiffer spring may be needed. For lighter riders or smoother terrain, a softer spring will provide better comfort and traction.

Fine-Tuning Damping

• Compression and Rebound Adjustments: As mentioned earlier, fine-tuning the damping settings allows you to adjust the shock’s behavior under different conditions. Experiment with different settings based on the trail conditions. Softer compression and faster rebound work well for smoother trails, while slower rebound and stiffer compression are better suited for rough, technical descents.

Compatibility with Other Drivetrain Components

The STX22 Coil Rear Shock is a part of the suspension system and works in harmony with other components like your bike’s drivetrain and brakes. Although it doesn’t directly interact with the drivetrain, ensure that your bike frame and suspension linkage are designed to accommodate a coil shock.

• Compatibility Check: When upgrading or replacing your shock, always verify the shock’s dimensions and mounting hardware to ensure compatibility with your frame. Check the shock eyelet size, stroke length, and mounting positions.

By understanding how the STX22 Coil integrates with the rest of your bike’s components, you can ensure that your bike remains balanced and performs optimally.