How to Fix Bike Brakes Squeaking

Overview

Squeaking brakes can be annoying and reduce stopping power. This guide covers fixing squeaking bike brakes.

Step-by-Step Fix

1. Firstly, carefully remove the brake pads from their calipers or holders, noting their orientation for reinstallation. Thoroughly clean both the pad's braking surface and the entire pad holder with rubbing alcohol and a clean cloth to remove any accumulated grime or grease. Before proceeding, ensure the pads are completely dry and free from any residue.
2. Next, clean the braking surface of your bike's wheels (the rim) or disc rotors using a fresh cloth dampened with rubbing alcohol. Wipe down the entire contact area to eliminate dirt, oil, or embedded grit that could cause squeaking, and allow it to air dry completely before reassembling any components.
3. Now, gently abrade the surface of each brake pad with fine-grit sandpaper (around 120-180 grit) to remove any shiny, hardened 'glazing' that may have formed. Sand in a circular motion until the surface looks dull and slightly rough, then wipe away any dust with a clean cloth.
4. Carefully refit the brake pads into their correct positions in the calipers or holders, ensuring they are facing the right way. Adjust the pads so they make full, even contact with the rim or disc rotor when the brake is applied, aiming for a small gap when disengaged. Once aligned, tighten all bolts securely, making sure the pads remain perfectly positioned.
5. Finally, test your brakes by wheeling your bike in a safe, open area at a slow speed, applying the brakes firmly to check their stopping power and to listen for any residual squealing. Repeat this process a few times to bed in the pads, listening carefully to ensure the squeaking has stopped and braking feels consistent before riding at speed.

Common Symptoms & Diagnostic Resolutions

Review the common error codes and operating symptoms below to quickly identify the root cause of the fault before ordering replacement parts.

Frequently Asked Questions