The Vivid Air R2C rear shock from RockShox is known for its superior performance and adjustability, making it a popular choice for riders seeking a high-performance suspension system. Regular servicing is essential to maintain its optimal performance, longevity, and to ensure that you get the best possible ride. In this guide, we’ll cover the steps for servicing the Vivid Air R2C, including installation, maintenance, troubleshooting, and customization for better performance.

Tools Required

To service the Vivid Air R2C rear shock, you will need the following tools:

• Shock pump (with pressure gauge)
• 5mm and 6mm Allen wrenches [paid link]
• T25 Torx wrench [paid link]
• Torque wrench [paid link]
• 10mm spanner wrench
• Small syringe or fluid transfer tool
• Rags and cleaning materials
• Suspension oil (RockShox specific)
• Safety glasses and gloves

Understanding the Vivid Air R2C Rear Shock

The RockShox Vivid Air R2C rear shock is a high-end air-sprung shock that provides an exceptional level of adjustability. It is equipped with a Dual Flow Adjust compression damping system, which allows riders to fine-tune the shock for different types of terrain. The “R2C” in its name stands for two-position compression with rebound control, making it perfect for both aggressive riders and those looking for a more tuned, smooth ride.

Key features of the Vivid Air R2C include:

• Dual Flow Adjust compression damping system
• Air spring for a lightweight and customizable ride
• Tool-free rebound adjustment for easy tuning
• Bottom-out bumper for smoother landings

Regular maintenance ensures that all components function smoothly, extending the lifespan of the shock and maintaining ride quality.

Installation of the Vivid Air R2C

Proper installation is the first step in ensuring that your Vivid Air R2C rear shock functions correctly. Here are the steps for installation:

1. Remove the Old Shock: Start by removing the existing rear shock from your bike. This typically involves using a 5mm or 6mm Allen wrench [paid link] to unscrew the bolts holding the shock in place. Make sure to place the bike securely in a stand to avoid any damage.
2. Prepare the New Shock: Before installation, verify that the Vivid Air R2C shock is the correct size for your bike frame. Check the eye-to-eye measurement and stroke length to ensure compatibility with your suspension system.
3. Install the Shock: Position the Vivid Air R2C rear shock into the frame’s suspension mount. Insert the mounting hardware and tighten the bolts with the appropriate Allen wrenches [paid link], ensuring they are secure but not overtightened (use a torque wrench [paid link] to follow manufacturer specifications).
4. Check Alignment: Ensure that the shock is aligned properly and that no parts are in contact with the frame in a way that could cause wear or friction.
5. Set Initial Air Pressure: Use the shock pump to inflate the shock to the recommended air pressure for your rider weight. This will typically be specified in the Vivid Air R2C manual. Ensure the shock is inflated to the correct pressure to ensure optimal performance.

Adjustments for Optimal Performance

The Vivid Air R2C rear shock features several adjustment options to allow you to fine-tune your suspension for different riding conditions. Here’s how you can adjust the shock for optimal performance:

Compression Damping Adjustment

• The R2C model features Dual Flow Adjust compression damping. This allows you to adjust both the low-speed and high-speed compression independently, providing a customizable feel for various trail conditions.
• Use the compression knob to adjust low-speed compression. Turning it clockwise will stiffen the compression, while counterclockwise softens it.
• High-speed compression adjustments can be made by using the external dial. This helps control large impacts and big hits, so adjust based on your preferences.

Rebound Adjustment

• The Vivid Air R2C features a tool-free rebound adjustment. To adjust rebound damping, turn the dial at the base of the shock. For faster rebound, turn the dial counterclockwise; for slower rebound, turn it clockwise.
• It’s important to find the right balance for your riding style. If your rebound is too fast, the shock may bounce back too quickly, causing a harsh ride. If it’s too slow, it may feel sluggish and not return in time for the next bump or compression.

Air Pressure and Spring Rate

• The air spring in the Vivid Air R2C can be adjusted based on rider weight. Always check your sag to ensure that the shock provides the right amount of travel. A sag of around 30% is typically recommended for most riders.
• Use a shock pump to adjust the air pressure as needed, and consider experimenting with small adjustments to dial in your preferred ride feel.

Maintenance of the Vivid Air R2C

Routine maintenance is necessary to keep your shock performing at its best. The following steps outline the recommended maintenance for the Vivid Air R2C:

Cleaning the Shock

• After every ride, wipe down the shock with a rag to remove dirt, mud, and debris. Avoid using harsh chemicals as they can damage the shock’s seals.
• Inspect the shock for any signs of wear, oil leakage, or damage.

Changing the Suspension Fluid

• Over time, the internal suspension fluid will degrade, affecting performance. Regular fluid changes are necessary for smooth operation.
• To change the fluid, first, remove the shock from the frame. Then, using a small syringe or fluid transfer tool, remove the old fluid and replace it with fresh suspension fluid. Always follow RockShox’s fluid specifications for the Vivid Air R2C to ensure optimal performance.

Seals and O-Rings

• Check the seals and O-rings for any signs of damage or wear. If you notice any leaks or excessive play in the shock, replace the seals as soon as possible to prevent further damage.
• Lubricate the seals lightly with suspension grease to ensure proper function and longevity.

Troubleshooting Common Issues

While the Vivid Air R2C is a high-quality rear shock, like any mechanical component, it may encounter issues over time. Here are some common problems and how to troubleshoot them:

Shock Not Holding Air Pressure

• If the shock is losing air pressure, the most likely cause is a damaged air valve or a compromised seal. Inspect the valve and seals for visible damage or wear. If necessary, replace the valve core or seals.
• Ensure that you are using the proper shock pump and not over-tightening the valve.

Poor Rebound or Compression Performance

• If the shock is not responding well to rebound or compression adjustments, it could be due to old suspension fluid or dirt inside the shock. Follow the maintenance steps to change the fluid and clean the internal components.
• If adjustments still don’t resolve the issue, the shock may require a complete rebuild.

Noisy Shock

• If the shock is making unusual noises, it could be due to insufficient lubrication on the seals or dirt inside the shock. Clean the shock and lubricate the seals as needed. If the problem persists, inspect the internal components for any wear or damage.

Customization and Optimization for Better Performance

Customizing the Vivid Air R2C rear shock for optimal performance depends on your riding style, weight, and the terrain you ride on. Here are some tips for fine-tuning the shock:

• Tune the Compression Damping: Adjust the low-speed and high-speed compression damping to match your riding conditions. For smoother trails, reduce compression for a plush ride. For aggressive downhill runs, increase compression to prevent bottoming out.
• Set the Right Air Pressure: Adjust the air pressure according to your weight, aiming for around 30% sag for the best performance. Experiment with small changes to the air pressure until you find the most comfortable and responsive setting.
• Fine-Tune Rebound: Ensure the rebound is neither too fast nor too slow. A well-adjusted rebound helps maintain control and smooths out the ride.

Compatibility with Other Drivetrain Components

The Vivid Air R2C rear shock is compatible with a wide range of bike frames, but it is important to ensure proper fitment with your specific setup. Check the frame manufacturer’s specifications to confirm that the shock’s eye-to-eye measurement and stroke length match the frame requirements.

While the Vivid Air R2C is compatible with most modern bikes, it’s always a good idea to consult with your bike shop or RockShox dealer to ensure that the shock is suited to your frame and other drivetrain components.

By following these tips and performing regular maintenance, you can ensure that your Vivid Air R2C rear shock remains in top condition, providing you with a smooth and responsive ride for many seasons to come.