Troubleshooting SRAM Rival Force eTap AXS Disc Brake Issues

When it comes to delivering unparalleled power and feel in the road braking universe, SRAM hydraulic disc brakes stand out distinctly. However, like every mechanical equipment, even these high performing brakes might show signs of wear, inefficiency, or technical hiccups. Don't worry, though. With a little elbow grease and know how, you can make your brakes feel as good as new again.

In this blog, we’ll walk through some of the common problems you might face with your SRAM Rival Force eTap AXS disc brakes and offer solutions to rectify them. Let’s jump right in!

1. Sticky Pistons, Pad Rub, or Uneven Pad Advancement

Problem: Over time, pistons can become sticky, leading to an uneven pad advancement. This not only affects the efficiency of your brakes but also causes the dreaded pad rub.

How to Fix Lazy or Seized Pistons in SRAM Brakes: A Guide to Phenolic Pistons and DOT Fluid Maintenance | Gorilla Brakes

Solution:

• Follow SRAM’s piston massage procedure for the exact caliper, using its specified spacer and controlled piston movement. Do not pump exposed pistons without the spacer.
• Do not apply oil, brake fluid, grease or silicone lubricant to the caliper pistons during troubleshooting.
• Reassemble and test as instructed. If the problem persists, have the brake inspected; rubbing alone does not prove that pistons or seals need replacement.

2. Lever Pulls to Handlebar

Problem: If your lever pulls close to or touches the handlebar, it's an indicator that there might be air in the brake system or a lack of hydraulic fluid.

Solution:

• Inspect pad and rotor wear, leaks, damage and setup. Do not top up fluid as a shortcut. If the lever reaches the bar or braking is unreliable, stop riding and have the brake inspected.
• If a bleed is required, use SRAM approved DOT 4 or DOT 5.1 fluid and the specified procedure for these road brakes. Do not use DOT 5 or mineral oil.

3. New Brake with No Power

Problem: Sometimes, a brand new brake might feel spongy or lack the required stopping power.

Solution:

• Check for proper rotor and pad alignment.
• Ensure the brake pads are not contaminated with oil or grease. If they are, replace them.
• Perform a brake bed in procedure. This helps in establishing a uniform layer of pad material on the rotor surface, enhancing brake performance.

4. Brake Noise

Problem: Squealing or grinding noises when you apply the brakes can be annoying and indicative of a potential problem.

Solution:

• Clean the rotor using isopropyl alcohol and a clean cloth.
• Ensure the brake pads are not worn out or contaminated. Replace if necessary.
• Check for proper caliper alignment. Adjust as needed.
• Inspect glazed pads and follow the brake manufacturer’s guidance. Replace pads contaminated with oil or grease; sanding, heating or soaking is not a reliable contamination repair.

In Conclusion

Your SRAM Rival Force eTap AXS disc brakes are designed for performance and durability. However, like all things mechanical, they require a bit of TLC from time to time. With the right maintenance and troubleshooting, you can ensure they remain in top notch condition, delivering smooth, powerful stops on every ride.

If you continue to experience problems, don't hesitate to reach out to our brake specialists. They handle these situations daily and are always eager to assist. Contact number provided below.

Address:
Gorilla Brakes Limited, 
Alston House,
White Cross Industrial Estate,
White Cross St,
Lancaster,
LA1 4XF
United Kingdom
Phone: 01524 964740