Bleeding your SRAM Code R brakes might seem daunting, but with the right tools and a methodical approach, it's a manageable task that can significantly improve your braking performance. This guide will walk you through the process step-by-step, ensuring you get those brakes feeling crisp and responsive again.
Why Bleed Your SRAM Code R Brakes?
Over time, air can enter your SRAM Code R brake lines, leading to a spongy feel at the lever and reduced braking power. This can be caused by several factors including:
- Wear and tear: Normal wear and tear on the seals within the system can allow air to seep in.
- Accidental damage: A crash or impact could compromise the system's integrity.
- Brake pad replacement: Replacing brake pads sometimes introduces air into the system.
- System maintenance: Even routine maintenance can inadvertently introduce air.
A properly bled system is crucial for safety and optimal performance. Spongy brakes can lead to dangerous situations, so don't hesitate to bleed your brakes if you notice any degradation in their performance.
Tools You'll Need:
Before you begin, gather these essential tools:
- SRAM bleed kit: This kit contains everything you need, including the syringe, bleed block, tubing, and mineral oil. Using the correct SRAM bleed kit is crucial.
- Clean rags or shop towels: To wipe up any spills.
- Container to catch used oil: A small bowl or container will work well.
- Torque wrench: To ensure proper tightening of the caliper bolts. This helps to prevent leaks.
- Patience: Take your time and follow the steps carefully. Rushing can lead to mistakes.
Step-by-Step Bleeding Procedure:
1. Preparation:
- Clean your workspace: A clean workspace prevents contamination of the system.
- Open the bleed port: Locate the bleed port on the brake caliper.
- Remove the lever's contact point adjustment: This is usually a small screw or bolt.
- Ensure brake pads are correctly positioned. This is important for system function.
2. Attach the Bleed Kit:
- Connect the syringe: Attach the syringe to the bleed port.
- Attach tubing: Connect the other end of the tubing to the bleeder port on the caliper.
- Fill the syringe: Fill the syringe with SRAM DOT 5.1 mineral oil. Do not use any other type of brake fluid.
3. Bleed the Caliper:
- Open the bleed valve: Slowly open the bleed valve on the master cylinder lever.
- Pump the lever: Pump the brake lever several times to push the old fluid and air out.
- Close the bleed valve: Close the bleed valve once you have expelled all of the air and the fluid runs clear.
- Repeat the process: Repeat this process until all the air is removed.
4. Bleeding the Master Cylinder:
- This step often gets missed and is very important.
- With the bleed port on the master cylinder open, use the syringe to draw mineral oil into it to remove air pockets trapped there.
- You will see air bubbles coming up in the syringe. Keep drawing until clear.
5. Final Checks:
- Tighten everything: Tighten all connections securely.
- Check for leaks: Inspect all connections for any leaks.
- Pump the lever: Pump the brake lever several times to ensure proper function.
- Reconnect the contact point adjustment: Reattach and adjust it as needed.
- Test brakes: Test the brakes carefully.
Important Considerations:
- Cleanliness is key: Maintain cleanliness throughout the process to prevent contamination.
- Don't rush: Take your time to avoid introducing more air into the system.
- Use the correct oil: Only use SRAM DOT 5.1 mineral oil. Using the wrong fluid can damage your brakes.
- Consult the manual: Refer to your bike's and brake system's manual for specific instructions.
By following these steps carefully, you can successfully bleed your SRAM Code R brakes and restore their optimal performance. Remember, safety is paramount, so if you're unsure about any part of the process, it's always best to consult a professional mechanic.
