How to Deal with Motorcycle Brake Squealing Noise?
2 Answers
Drum brake shoes and the brake drum have oil contamination, causing slipping and producing sharp noises. Rinse the brake drum and brake shoes with alcohol to remove the oil contamination. The surface of the drum brake shoes is too smooth, causing slipping and producing sharp noises. Sand the surface of the brake shoes with 800-grit sandpaper to increase friction.
My own motorcycle used to have brake squealing issues, and dealing with it isn’t actually difficult. First, check the wear condition of the brake pads. If they’re already worn very thin, simply replace them with new ones, as the squealing is often caused by uneven surfaces due to wear, resulting in harsh noise. If the brake pads are still thick but squealing, try spraying Brake Cleaner to clean the brake disc and pad surfaces, removing grease or dust. After cleaning, ride a short distance to see if the noise disappears. If it doesn’t, you may need to sand them down or consider replacing them with higher-quality material if the pads are subpar. Additionally, improper brake installation or rainwater buildup can also cause unusual noises, so check if the mounting bolts are loose and ensure a dry riding environment. During regular maintenance, I routinely clean the brake system and inspect the brake pad condition every three months, which helps prevent issues and saves a lot of trouble.
