The Marzocchi Bomber CR Trunnion [paid link] rear shock is a top-tier suspension component designed to deliver excellent performance and precision for serious cyclists. This shock is built for riders who prioritize smooth, consistent performance on a variety of terrains. With advanced features aimed at enhancing comfort and control, the Bomber CR Trunnion [paid link] rear shock is a game-changer for those seeking an upgraded riding experience. This article will provide a detailed guide on its installation, adjustment, maintenance, troubleshooting, optimization, and comparison with similar models.

Installation of the Bomber CR Trunnion Rear Shock

Installing the Bomber CR Trunnion rear shock requires careful attention to detail to ensure a secure and proper fit. The installation process is straightforward but must be approached with caution to avoid damage to the frame or shock.

Step-by-step Installation Guide:

1. Prepare the bike: Begin by removing the rear wheel and ensuring the bike is secure. This will provide enough space to install the shock.
2. Remove the old shock: If you are replacing an existing shock, remove it by unscrewing the mounting bolts on both ends. Use a torque wrench [paid link] to ensure that the bolts are tightened to the correct specification.
3. Check shock compatibility: The Bomber CR Trunnion is designed to work with frames that feature a trunnion-style mount. Make sure your frame supports this type of mount before proceeding.
4. Attach the new shock: Align the Bomber CR Trunnion rear shock with the trunnion mount on your frame. Insert the shock’s mounting bolts through the frame and secure them. Tighten each bolt to the manufacturer’s recommended torque setting.
5. Reinstall the rear wheel: Once the shock is installed, reattach the rear wheel. Ensure that everything is securely fastened and that the suspension is functioning correctly before taking the bike out for a test ride.

Adjustment of the Bomber CR Trunnion Rear Shock

Properly adjusting the Bomber CR Trunnion rear shock is key to achieving optimal ride quality. This shock offers various settings that allow riders to fine-tune their suspension to match their riding style and terrain.

Key Adjustments:

1. Compression Dampening: The Bomber CR features adjustable compression damping. This setting controls how the shock responds to bumps and impacts. For smoother rides on flat terrain, set the compression damping to a softer setting. For technical trails, a firmer compression setting will provide better control.
2. Rebound Dampening: The rebound dampening controls the shock’s return speed after compression. A slow rebound is ideal for rougher trails, as it keeps the shock from bouncing too quickly. For smoother trails, a faster rebound setting will help maintain control.
3. Air Spring Pressure: Adjusting the air spring pressure allows you to change the shock’s overall feel. Riders who want a more plush ride should reduce the air pressure, while those looking for more support and responsiveness can increase it. Always ensure that the pressure is within the recommended range.
4. Sag Setting: The Bomber CR Trunnion rear shock offers an adjustable sag, which refers to the amount the shock compresses under the rider’s weight. Typically, a sag of 30-35% is recommended for optimal performance.

Maintenance of the Bomber CR Trunnion Rear Shock

Routine maintenance is essential to keep the Bomber CR Trunnion rear shock performing at its best. Regular inspection and care will extend the life of the shock and maintain smooth ride quality.

Maintenance Steps:

1. Clean the shock regularly: After every ride, wipe down the shock with a clean cloth to remove dirt, debris, and moisture. This prevents grime from building up and affecting the shock’s performance.
2. Check for leaks: Inspect the shock for signs of oil leaks. If you notice any leakage, it’s important to address the issue immediately by servicing the shock.
3. Lubricate the shock: Periodically lubricate the shock’s mounting points to ensure smooth movement and prevent corrosion. Use a light grease that’s compatible with suspension components.
4. Check air pressure: Over time, air pressure in the shock may decrease. Regularly check the air pressure and adjust it as necessary to maintain optimal suspension performance.

Troubleshooting Common Issues with the Bomber CR Trunnion Rear Shock

Even the best suspension components can experience issues over time. Here are some common problems and how to troubleshoot them:

Common Problems and Solutions:

1. Loss of rebound control: If the shock is bouncing uncontrollably after compression, the rebound damping setting may need to be adjusted. If this does not resolve the issue, the shock may need to be serviced to address internal components.
2. Suspension feels too stiff: If the suspension feels too stiff or unresponsive, reduce the air pressure or soften the compression damping. If the issue persists, check for air leaks or internal damage.
3. Noise from the shock: A squeaking or knocking noise could indicate that the shock’s mounting bolts are loose. Tighten the bolts to the specified torque. If the noise continues, check for issues with the bushings or mounting hardware.

Customization and Optimization of the Bomber CR Trunnion Rear Shock

The Bomber CR Trunnion rear shock is highly customizable, offering a range of settings to help riders optimize their suspension for different riding conditions. Fine-tuning these settings will help you achieve a more personalized and effective suspension setup.

Key Customization Tips:

1. Adjust the air spring pressure: For riders looking for more plushness, reducing air pressure will soften the ride. Conversely, increasing pressure will provide more support, especially for heavier riders or those riding on aggressive terrain.
2. Tune the damping settings: Experiment with the compression and rebound damping to find the balance that works best for you. Riders who frequently ride technical, rocky terrain may prefer stiffer compression and slower rebound, while those who ride smoother trails may benefit from a softer setup.
3. Check sag frequently: As your riding conditions change, so should your sag setting. Adjusting the sag ensures that the shock performs optimally for your riding style and the specific trail conditions.

Comparison with Similar Models

When choosing a rear shock for your bike, it’s important to compare options to ensure you’re selecting the best model for your needs. The Bomber CR Trunnion rear shock stands out due to its robust performance, adjustability, and durability, but how does it compare to other models?

Bomber CR Trunnion vs. Other Rear Shocks:

• Fox Float X2: The Fox Float X2 offers similar adjustability but is known for being slightly lighter. However, the Bomber CR Trunnion’s price point makes it an excellent choice for riders looking for high-end performance at a more affordable price.
• RockShox Super Deluxe: The Super Deluxe is known for its plush ride quality, but the Bomber CR Trunnion offers a more responsive and firmer feel, making it better suited for aggressive riders who prioritize control.

Compatibility with Other Drivetrain Components

The Bomber CR Trunnion rear shock is designed to work seamlessly with a wide range of drivetrain components, but it is important to ensure compatibility with your frame and other suspension elements.

• Frame Compatibility: The Bomber CR Trunnion rear shock is specifically designed for frames with trunnion mounts. Ensure that your frame uses a trunnion mount for optimal performance and a secure fit.
• Drivetrain Compatibility: While the rear shock does not directly interact with the drivetrain, its performance is influenced by the overall setup of your bike. Ensure that your drivetrain is properly tuned to avoid any misalignment that could affect suspension performance.

By following these guidelines, riders can enhance their ride quality with the Bomber CR Trunnion rear shock, ensuring a smoother, more controlled experience on the trail.