The Engineering Behind Mara Inline Trunnion Rear Shocks

The Mara Inline Trunnion [paid link] rear shock from Manitou offers a cutting-edge solution for cyclists who demand precision, performance, and reliability. This shock is designed for a wide range of trail, enduro, and all-mountain riders who require the best in suspension technology. With a focus on performance, durability, and ease of use, the Mara Inline Trunnion [paid link] sets itself apart from other shocks in its class. In this guide, we will break down its installation, adjustment, maintenance, troubleshooting, and customization options to help you optimize your riding experience.

Installation of Mara Inline Trunnion Rear Shock

Installing the Mara Inline [paid link] Trunnion rear shock requires attention to detail to ensure a secure fit and proper functionality. The process is straightforward, but it is essential to follow the correct steps to achieve optimal performance.

Step-by-Step Installation

  1. Remove the Existing Shock: Begin by removing the old shock from your bike frame. Use a torque wrench [paid link] to avoid over-tightening when loosening bolts. Make sure to keep track of any washers or spacers that might be in use.
  2. Prepare the New Shock: Check that the Mara Inline [paid link] Trunnion shock is compatible with your frame’s suspension design. Confirm the correct eyelet size and mounting configuration.
  3. Install the Shock: Carefully position the shock in the rear triangle and align it with the trunnion mount. Secure it using the appropriate hardware (washers, bolts). Tighten the bolts to the manufacturer’s recommended torque specifications.
  4. Check Alignment: Ensure the shock is properly aligned and that there is no interference between the frame and shock during suspension movement.
  5. Set Sag: Once installed, adjust the sag by measuring the shock’s travel in relation to your rider weight. Proper sag ensures that the shock performs optimally.

Adjustment and Customization

One of the key features of the Mara Inline Trunnion is its adjustability, allowing cyclists to fine-tune the shock to their specific needs.

Compression and Rebound Damping

The Mara Inline Trunnion is equipped with both compression and rebound damping controls, giving you the ability to modify the shock’s response to terrain:

  • Compression Damping: This controls how the shock compresses when it absorbs impacts. To adjust, turn the compression knob to the desired setting. Higher compression settings provide more resistance, ideal for smoother trails, while lower settings provide more plushness for rougher terrain.
  • Rebound Damping: This controls how quickly the shock returns after compressing. Adjusting the rebound ensures the shock doesn’t “bounce” too quickly after hitting a bump, providing a more controlled and stable ride. Fine-tune the rebound setting based on the trail conditions.

Air Spring Pressure

The Mara Inline Trunnion features an air spring, which can be adjusted to suit your weight and riding style. Use a shock pump to adjust the air pressure to the recommended psi, which is typically printed on the shock body. Experiment with the pressure for different conditions to find the optimal feel.

Volume Spacers

If you find that the shock is bottoming out too easily, consider installing volume spacers. These spacers reduce the air volume inside the shock, which increases progression and prevents excessive bottom-out. You can adjust the number of spacers depending on the type of riding you plan to do.

Maintenance of Mara Inline Trunnion Rear Shock

Regular maintenance is key to ensuring your Mara Inline Trunnion rear shock performs at its best over time. Here are the basic maintenance tasks you should perform:

Cleaning

  • Remove Dirt and Debris: After each ride, clean the shock with a soft cloth to remove dirt, mud, and any other debris. Avoid using harsh chemicals, as these can degrade the shock’s seals over time.
  • Inspect the Shock: Regularly inspect the shock for any signs of damage or wear, particularly around the seals and mounting points.

Air Can Maintenance

  • Check Air Pressure: Monitor the air pressure and adjust it as needed. Over time, air pressure can decrease, so it’s important to check it before each ride.
  • Lubricate the Seals: Apply a small amount of suspension oil to the seals to prevent them from drying out and to maintain smooth operation. This will help prevent seal wear and ensure longevity.

Full Service

  • Shock Overhaul: It’s recommended to service the shock annually, or more frequently depending on riding conditions. This includes draining the oil, replacing seals, and checking internal components for wear. It’s advisable to have a professional mechanic perform the full service to maintain optimal performance.

Troubleshooting Common Issues

While the Mara Inline Trunnion is a durable and reliable shock, issues may occasionally arise. Here are some common problems and how to troubleshoot them:

Issue: Loss of Air Pressure

  • Cause: This can occur due to a leaky valve or worn-out seals.
  • Solution: Use soapy water to check for leaks around the air valve. If the leak is coming from the valve, replace the valve core. If the seals are damaged, it may be time for a full overhaul.

Issue: Shock Bottoming Out

  • Cause: This can happen if the air pressure is too low or if there are not enough volume spacers.
  • Solution: Increase the air pressure or add volume spacers to prevent the shock from bottoming out during rough descents.

Issue: Rebound Is Too Fast or Too Slow

  • Cause: Rebound damping settings might be incorrectly adjusted for your weight or riding conditions.
  • Solution: Adjust the rebound knob to slow down or speed up the shock’s return, depending on the issue. Start with small adjustments and test the feel until you find the optimal setting.

Comparing the Mara Inline Trunnion to Similar Models

While the Mara Inline Trunnion offers impressive performance and features, it’s always beneficial to compare it with similar models in the market to help make an informed decision.

Mara Inline Trunnion vs. RockShox Super Deluxe

  • Mara Inline Trunnion: Known for its lightweight and versatile [paid link] design, the Mara Inline Trunnion offers great adjustability with both compression and rebound damping adjustments. It is particularly praised for its reliability and smooth performance.
  • RockShox Super Deluxe: This shock provides excellent damping with a slightly higher level of customization. However, it is often seen as heavier compared to the Mara Inline Trunnion and may not be as plush for lighter riders.

Mara Inline Trunnion vs. Fox Float X2

  • Mara Inline Trunnion: Offers a more simplified design with fewer options for customization, but it is easier to maintain and set up. Its air spring and damping adjustments are ideal for riders who prefer a more straightforward setup.
  • Fox Float X2: The Fox Float X2 offers more advanced features like high-speed compression adjustment and a separate damper for each shock cycle. However, it’s a more complex shock that might not suit riders looking for simplicity.

Compatibility with Other Drivetrain Components

When installing the Mara Inline Trunnion rear shock, compatibility with other components of your drivetrain is essential for achieving optimal performance. The shock is designed to work seamlessly with most modern mountain bike frames, particularly those with a trunnion mount. Ensure that your frame is compatible with trunnion-mounted shocks, and verify that the shock length and stroke are appropriate for your bike’s rear suspension geometry.

The Mara Inline Trunnion is compatible with most modern drivetrains from brands like Shimano, SRAM, and others, but it’s important to check your specific bike setup for compatibility. Also, consider the type of riding you do—trail, enduro, or downhill—as these factors can affect how well the shock pairs with your drivetrain.