The TTX22M Coil rear shock from Öhlins is a premium suspension component that offers exceptional performance and customization options for serious cyclists. Designed to deliver a smooth, controlled ride across varied terrains, it is particularly beneficial for riders seeking more comfort and stability on rough trails. This guide will take you through everything you need to know about installing, adjusting, maintaining, and troubleshooting your TTX22M Coil rear shock, ensuring you get the most out of your investment.

Installation of TTX22M Coil Rear Shocks

Before installing your TTX22M Coil rear shock, it’s important to familiarize yourself with the tools required and the step-by-step process to ensure proper fitting and optimal performance.

Tools Required

• Torque wrench [paid link]
• Allen wrenches [paid link] (typically 4mm and 5mm)
• Shock pump
• Grease
• Soft cloth or rag

Step-by-Step Installation Process

1. Prepare the Bike and Suspension Mount
   Begin by ensuring that your bike is securely positioned on a bike stand [paid link]. Remove the old shock if applicable, and clean the shock mount and surrounding areas to ensure no dirt or debris remains.
2. Install the TTX22M Coil Rear Shock
   Position the Öhlins TTX22M Coil shock in place, aligning the mounting hardware with the frame’s suspension mount. Ensure the shock is properly seated in the mounts.
3. Tighten the Mounting Bolts
   Using the appropriate size Allen wrench [paid link], tighten the mounting bolts to the manufacturer’s specified torque value. Be cautious not to overtighten, as this can damage the frame or shock mount.
4. Check for Clearance and Movement
   After securing the shock, check the frame and rear triangle for any clearance issues. You should also test the movement of the shock to ensure it operates smoothly and without any binding.
5. Set the Initial Sag
   Using a shock pump, inflate the shock to the recommended pressure based on your rider weight. The sag (compression under load) should be adjusted to approximately 30% of the shock’s total travel for optimal performance.
6. Final Checks
   Ensure that all bolts are torqued to spec, and check that the shock moves freely without any obstruction. Test ride your bike to ensure everything feels smooth and responsive.

Adjustment and Optimization

The TTX22M Coil rear shock offers several adjustment features that allow you to fine-tune the suspension according to your riding style and the terrain you’ll be riding on.

Rebound Adjustment

The rebound adjustment controls how quickly the shock returns to its original position after compression. If the rebound is too slow, the shock can feel sluggish and unresponsive. Conversely, if the rebound is too fast, the bike may become bouncy and unpredictable.

• To adjust rebound: Locate the rebound knob at the bottom of the shock. Turn it clockwise for slower rebound and counterclockwise for faster rebound. Test your adjustments on the trail, and fine-tune for optimal responsiveness.

Compression Adjustment

The compression adjustment affects how the shock responds to forces when you hit bumps or obstacles. It is essential for controlling the shock’s response to different trail conditions.

• To adjust compression: The compression dial is typically located on the shock body. Turn it clockwise to increase compression and make the shock stiffer, or counterclockwise to reduce compression for a softer feel. Experiment with various settings to find the best balance between comfort and control.

Spring Rate Selection

Choosing the right coil spring is essential for achieving proper sag and ride quality. The TTX22M Coil rear shock offers a range of spring rates to suit different rider weights and preferences.

• To select the right spring: Use Öhlins’ spring rate chart to determine the appropriate coil spring based on your weight and riding style. Install the new spring by removing the existing one, placing the new one in its place, and tightening the spring retaining collar.

Maintenance Tips for Longevity

Regular maintenance is crucial for keeping your TTX22M Coil rear shock in top working condition. Below are some maintenance tips to ensure your shock performs optimally for many rides to come.

Cleaning the Shock

• After each ride, clean the shock using a soft cloth to remove dirt, mud, and debris.
• Inspect the shock for any visible damage, such as scratches or dents, which could affect performance.
• Ensure that the mounting bolts remain tight and free of rust.

Regular Servicing

Öhlins recommends servicing your TTX22M Coil rear shock every 100-150 hours of riding or once per year, whichever comes first. A full service includes checking the internal damper and replacing any worn seals.

• Servicing includes:
  • Disassembling the shock for inspection.
  • Replacing seals and oil if needed.
  • Testing the shock on a test rig for performance verification.

Spring Care

Over time, the coil spring can lose some of its tension, especially if exposed to extreme conditions. It’s a good idea to periodically inspect the spring for any signs of wear and replace it if necessary.

Troubleshooting Common Issues

The TTX22M Coil rear shock is a high-quality component, but like any mechanical part, it can experience issues. Below are some common problems and their solutions.

No Rebound Control

• Problem: The shock does not return to its original position after compression.
• Solution: Check the rebound adjustment knob. If it is too far in the fast position, turn it counterclockwise to slow the rebound down. If this doesn’t solve the issue, the shock may need servicing.

Excessive Bottom-Out

• Problem: The shock bottoms out too easily on larger impacts.
• Solution: Increase the compression damping by turning the compression adjustment knob clockwise. Additionally, ensure the correct spring rate is selected for your weight to avoid bottoming out.

Leaking Oil

• Problem: If you notice oil around the shock or shock mount area, this is a sign of a leaking seal.
• Solution: Immediately stop riding and perform a basic inspection. If the seals are damaged, take the shock to a qualified service center for a rebuild.

Comparison with Similar Models

When comparing the TTX22M Coil rear shock to similar options on the market, it stands out for its superior damping performance, adjustability, and durability. Many riders also appreciate the ease of customization through the spring rate and damping settings.

• Fox DHX2 vs. TTX22M Coil:
  While the Fox DHX2 offers similar adjustability, the Öhlins TTX22M Coil is known for its precise and consistent performance over a wide range of trail conditions. The TTX22M’s spring rate options are also more varied, allowing for finer tuning.
• RockShox Super Deluxe Coil vs. TTX22M Coil:
  The RockShox Super Deluxe Coil is a popular alternative, but the TTX22M is typically favored for its smoother ride and better overall control, particularly on technical and aggressive trails.

Compatibility with Other Drivetrain Components

The TTX22M Coil rear shock is compatible with a wide range of drivetrain systems, from 1x setups to 2x and 3x drivetrains. However, it’s important to verify that your bike frame is compatible with the shock’s mounting requirements, including the shock length and stroke.

• Frame Compatibility: The TTX22M Coil rear shock can be used with a variety of frame types, but check your bike’s specifications to ensure it fits within the recommended shock length and stroke range.
• Drivetrain Integration: While the shock itself doesn’t interact directly with the drivetrain, proper suspension tuning can significantly improve how your drivetrain performs by providing a smoother, more stable ride over rough terrain.