How to Silence Squeaky Mountain Bike Brakes
To stop mountain bike brakes from squeaking, first clean the braking system thoroughly with an alcohol-based cleaner or hot soapy water. Then, adjust the brake pads so that they are properly aligned with the rim or rotor of the wheel. If there is still a squeaking sound, try lightly sanding the brake pad surfaces or replacing them with new pads. Additionally, check for any loose or worn components in the braking system and tighten or replace as necessary.