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How to Clean Bicycle Disc Brakes

Certain components installed on your bicycle require periodic maintenance in order to ensure proper functionality and longevity. Some bicycles manufactured today feature disc brakes, which provide superior stopping power over rim braking systems. Disc brakes consist of a round-shaped metal rotor, caliper and brake pads. When applying the brake lever, the caliper squeezes the brake pads against the wheel-mounted rotor, causing the bicycle to stop. Cleaning the disc brake system on your bicycle may alleviate squealing noises, while boosting braking performance.

Things You'll Need

Allen wrench set
Flat head screwdriver
Cloth rags
Automotive brake cleaner or rubbing alcohol

Instructions

- 1
  Flip the bicycle upside down, on a flat surface, with the wheels pointing upwards or place it in a bike stand. Resting the bicycle on the seat and handlebars will allow for better access to the braking system.
- 2
  Remove the disk brake caliper and brake pads. Use an appropriate size allen wrench to remove the mounting bolt that secures the caliper to the bicycle frame, located near the wheel center. After dismounting the caliper, remove the small brake pads mounted inside of the caliper, using a flat head screwdriver.
- 3
  Clean the caliper and brake pads using automotive brake cleaner and a cloth rag; do not saturate any rubber seals or brake lines with the cleaner. Substitute automotive brake cleaner with rubbing alcohol, if needed.
- 4
  Apply liberal amounts of brake cleaner or rubbing alcohol to a clean rag and thoroughly clean the rotor surface. Repeat the cleaning procedure until all traces of dirt and debris are gone from the surface of the disc brake rotor.
- 5
  Allow the rotor, caliper and brake pads to dry thoroughly. Reinstall the brake pads and caliper assembly, according to the manufacturer's instructions.

Bicycles