The Mara Inline Trunnion [paid link] rear shock by Manitou is a premium suspension component designed for serious mountain bikers seeking top-tier performance. With proper maintenance, this shock can provide smooth, reliable performance for years. This guide will take you through key maintenance procedures, troubleshooting tips, and optimization strategies to ensure your Mara Inline Trunnion [paid link] remains in peak [paid link] condition.

Installation of the Mara Inline Trunnion Rear Shock

Installing the Mara Inline [paid link] Trunnion rear shock requires precision and care. Incorrect installation can lead to poor performance or even damage to the shock and the frame.

Tools Required:

• Torque wrench [paid link] (with appropriate settings)
• 5mm Allen wrench [paid link]
• 6mm Allen wrench [paid link]
• Shock pump
• Grease (for mounting hardware)
• Rags or shop towels
• Cleaning solution

Steps for Installation:

1. Prepare the Frame and Shock: Before installation, thoroughly clean the mounting points on the bike frame and ensure that the shock’s mounting hardware is intact. Apply a light layer of grease to the mounting hardware to prevent seizing.
2. Mount the Shock: Attach the Mara Inline [paid link] Trunnion shock to the frame’s trunnion mounts using the provided bolts. Make sure the shock is properly aligned with the mounting points.
3. Torque the Bolts: Using the torque wrench [paid link], tighten the mounting bolts to the manufacturer’s recommended torque settings (usually specified in the shock manual). Over-tightening can damage the shock, while under-tightening can cause instability.
4. Set the Sag: After mounting the shock, use a shock pump to set the correct sag based on your weight and riding style. The recommended sag is usually around 30-35% of the shock’s total travel.
5. Test the Installation: Once the shock is installed and sag is set, gently compress the rear suspension to ensure it moves smoothly without any unusual resistance or sounds.

Adjustment of the Mara Inline Trunnion Rear Shock

To get the most out of your Mara Inline Trunnion rear shock, it’s crucial to fine-tune the settings based on your riding preferences and terrain. The shock offers multiple adjustments to customize its performance.

Compression and Rebound Damping:

• Compression Damping: The Mara Inline features a multi-click adjustable compression damping system. Start by setting it to a middle range for general riding and fine-tune from there based on the terrain. Increase compression for aggressive, rough trails, or decrease it for smoother rides.
• Rebound Damping: Adjusting the rebound damping controls the shock’s return speed after compression. Begin by setting it to a mid-range setting and adjust to ensure the shock rebounds quickly enough to prevent bottoming out but not too fast to cause instability.

Volume Spacers:

The shock allows the addition of volume spacers to adjust the progression of the shock’s spring curve. Adding spacers increases the end-stroke resistance, reducing bottoming out. For lighter riders or those seeking a more plush ride, removing spacers can create a smoother feel.

Air Pressure:

Adjust the air pressure to match your rider weight and desired ride feel. The Mara Inline’s air spring offers easy adjustability through a Schrader valve, making it easy to dial in the perfect amount of support. Start with the manufacturer’s recommended air pressure, then adjust based on your experience and terrain.

Maintenance of the Mara Inline Trunnion Rear Shock

Regular maintenance is key to ensuring the longevity and performance of the Mara Inline Trunnion rear shock. A little care goes a long way in preventing common issues and maintaining optimal suspension performance.

Cleaning and Lubing:

• Clean the Shock Regularly: Use a soft cloth and a mild cleaning solution to wipe down the shock after each ride. Pay special attention to the shock’s stanchion, seals, and mounting points to remove dirt and debris that can cause wear.
• Lubricate the Shock Seals: Apply a small amount of suspension-specific grease to the shock seals. This will prevent dirt from accumulating and keep the seals functioning properly.

Check for Leaks:

Inspect the shock for air or oil leaks, particularly around the seals and valves. If you notice any leaks, it’s important to address them quickly by either replacing seals or servicing the shock.

Regular Air Pressure Checks:

Keep an eye on the air pressure, especially if the shock feels soft or less responsive. Air pressure naturally decreases over time, so check it regularly and top it up as needed.

Troubleshooting Common Set-Up Issues

Despite the Mara Inline Trunnion being a high-quality rear shock, certain issues may arise during use. Understanding how to troubleshoot and resolve these problems will help you extend the life of your shock and ensure optimal performance.

Problem: Lack of Rebound Control

• Possible Cause: The rebound damping may be set too fast or too slow.
• Solution: Adjust the rebound knob by turning it clockwise (slower rebound) or counterclockwise (faster rebound) until the shock returns to its normal position without bouncing excessively.

Problem: Bottoming Out

• Possible Cause: The air pressure may be too low, or the compression setting may be too soft.
• Solution: Increase the air pressure slightly and adjust the compression damping to a firmer setting. This should help prevent the shock from bottoming out during heavy impacts.

Problem: No Compression Damping

• Possible Cause: The compression knob may be malfunctioning, or the shock’s internal components could be dirty or damaged.
• Solution: Clean the shock’s internals, ensuring that no dirt or debris has entered the system. If the compression still doesn’t engage, the shock may need to be serviced or the damping circuit replaced.

Customization and Optimization for Better Performance

The Mara Inline Trunnion rear shock can be customized to meet a rider’s specific needs. Optimizing this shock for your riding style and terrain can enhance your performance and make the bike more enjoyable to ride.

Fine-Tuning for Downhill Performance:

For aggressive downhill riders, adding volume spacers and increasing the compression damping will provide a more progressive feel and prevent bottoming out on large hits. Additionally, lowering the air pressure slightly can give a more supple ride over small bumps.

Fine-Tuning for Cross-Country Performance:

For cross-country or endurance riders, reducing the compression damping and air pressure will provide a more plush feel on long rides, allowing for better traction and comfort. Reducing the rebound damping slightly can also improve handling on fast descents.

Comparison with Similar Models

While the Mara Inline Trunnion rear shock offers excellent performance, understanding how it compares with similar models will help you make an informed decision about which shock is right for you.

• Manitou Machete Pro: The Machete Pro is a more affordable option in Manitou’s lineup, with slightly less advanced damping technology. It is suitable for casual riders but lacks the fine-tuning options available in the Mara Inline Trunnion.
• Fox DPX2: The Fox DPX2 is a competitor to the Mara Inline, offering similar features in terms of damping and adjustability. However, the DPX2’s air spring can feel less supple compared to the Mara Inline’s more refined tuning.
• RockShox Monarch Plus: The Monarch Plus is another alternative with similar specifications. While it offers excellent performance, the Mara Inline is often considered more adjustable, allowing for a greater range of customization.

Understanding Compatibility with Other Drivetrain Components

When using the Mara Inline Trunnion rear shock, it’s important to ensure compatibility with the rest of your bike’s drivetrain and suspension components.

• Rear Triangle Compatibility: The Mara Inline Trunnion shock is designed to fit trunnion-mount frames. Make sure your frame is compatible with this mounting style before purchasing.
• Brake Compatibility: Some rear shock installations require clearance for the brake caliper, especially on models with wider rear triangles. Ensure that the shock does not interfere with brake lines or calipers.
• Other Suspension Components: The shock’s performance can be optimized when used with other high-quality suspension components, such as a matching fork. If you plan to upgrade your front suspension, consider selecting a model with similar characteristics for balanced performance.