How to deal with your ebike disc brakes squealing?

How to deal with your ebike disc brakes squealing?

Squealing brakes are quite common and they are just annoying and irritating. Squealing also indicate poorly set-up brakes. 

Reasons:

1- The rotor or pads are contaminated.
2- Grease or oil on the brake pad and rotor.
3- The contact between the braking surfaces is misaligned.

Solutions:

1- Clean your rotors with a specific (oil-free) disc brake degreaser. An alternative and common remedy is alcohol. Use it to clean the disc rotors with a small rag. Avoid using spray lubes anywhere near a bike with disc brakes.
2- Clean your pads with sandpaper. If the grease has soaked through the pad, you might need to replace them. Don’t use a degreaser or chemicals on brake pads.
3- The calliper is not lined up with the disc rotor, or the rotor is slightly bend which can be easily straightened with careful use of an adjustable spanner.

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