All tips
Bike brake squeaks
Noisy brakes, weak braking – what's behind it.
1. Problem
When braking there is a loud squeal or screech, sometimes the brake vibrates or braking power drops. Squeaking isn't always dangerous – but weaker braking certainly is.
2. Cause
- Rim brake: dirty rim or hardened, worn brake pads
- Disc brake: oil or grease on the rotor or pads (e.g. chain lube overspray)
- Pads are misaligned or the brake is loose
- Many brakes squeak briefly in the wet – that's normal
3. Solution
- Clean the rim or rotor with brake cleaner or alcohol and a clean cloth
- Check the pads: under about 1 mm, glazed and hard, or oily → new pads
- Rim brake: align the pads so the front edge touches slightly first (“toe-in”)
- Bed in new disc pads with a few stops before they reach full power
4. Workshop tip
Oily disc pads cannot be cleaned – they have to be replaced. And never spray chain lube near a disc brake. Brakes are safety parts – if braking gets weaker, we check them straight away, no appointment needed.
— Bike Haus Freiburg
Rather have it repaired?
Come to our workshop at Heckerstraße 27 without an appointment – small repairs are often done right away while you wait.