Ask a Mechanic: Squealing Disc Brakes

Squealing disc brakes not only make riding miserable, it often makes riding unsafe as well by cutting your braking power in half. Most disc brake squealing issues can be attributed to contaminants on the brake rotor and/or brake pads. Spray lubes, soap, and certain degreasers can kill your brake power and turn your brakes into a pair of horns. Learn how to fix the problem in this short how to video.

Daniel Slusser is a professional bicycle mechanic with over ten years of experience. He holds a bachelor’s degree in business administration from HSU and a master’s degree in history from Cal Poly. When he is not riding, wrenching, or writing he enjoys spending time with his wife and two children.