Brakes rarely fail suddenly – usually a noise, a spongy lever or rubbing shows up first. Below are the most common symptoms and what we usually find behind them.
016 €
Bicycle brakes squeal
WhyThe most common culprits are greasy or glazed brake pad surfaces, moisture, or a badly positioned brake pad (V-brake). With disc brakes, squealing can be caused by dirt on the rotor or pads, or by a misaligned caliper.
Check it yourselfWipe the rim or rotor with a clean cloth and don’t spray lubricant near the brakes. If it keeps squealing, see a mechanic.
What we doWe check the condition of the brake pads, clean the rotor or rim, adjust the pad position or replace them with new ones.
028 €
The bike brakes weakly
WhyMost often worn brake pads, a stretched or rusty cable, a dirty rotor, a worn rim, or air in the hydraulic system.
Check it yourselfLook at whether the brake pad still has material left. Don’t ride with weak brakes – see a mechanic.
What we doWe replace brake pads, cables and housing, adjust the system and, if needed, bleed the hydraulic brake.
0313–15 €
The hydraulic brake lever goes all the way to the handlebar
WhyMost often there is air in the system or the brake fluid is already old. Sometimes the brake pads are very worn or the fluid level has dropped because of a leak.
Check it yourselfDon’t ride with brakes that don’t work – see a mechanic.
What we doWe bleed the brakes and check the hose, fittings and brake pads. If the brake can’t be repaired, we replace it.
04
The rotor rubs against the brake pads
WhyOften the wheel or caliper has shifted, the rotor is slightly bent, or the brake pads have worn unevenly. After a wheel has been removed, the caliper may no longer line up with the rotor.
Check it yourselfSpin the wheel and see whether it rubs through the whole rotation or only at a certain spot. Check that the wheel axle is fully inserted and tightened.
What we doWe centre the caliper, check the rotor and brake pads, and replace worn parts if necessary.
0512 €
The brake lever pulls too far or works stiffly
WhyIn mechanical and V-brake brakes the cable stretches, while dirt and moisture build up in the housing. The lever then either pulls all the way to the handlebar or moves jerkily.
Check it yourselfCheck whether the cable is frayed near the lever or the brake pad mount. If you see splayed strands, the cable needs to be replaced.
What we doWe replace the cable and housing and adjust the brake travel.
066 €
V-brake pads don’t return or rub on the rim
WhyWeak springs, unbalanced adjustment screws, a warped rim or a bent arm. The pads may touch the rim even when you aren’t squeezing the lever.
Check it yourselfSee whether the wheel spins true and has no „figure-eight” wobble. If the rim is wavy, adjusting the brakes alone won’t solve the problem.
What we doWe adjust the brakes, replace the pads and, if needed, fix the wheel. Read more about this in bicycle wheel repair.
0710 €
Brake lever is broken or doesn’t return
WhyThe lever breaks after a fall, or the pivot wears out. On hydraulic brakes, a damaged lever may leak fluid.
What we doWe replace the brake levers and grips, then adjust and test the braking.
0815 €
Hydraulic brake is leaking fluid
WhyA leak usually comes from a damaged hose, fitting or caliper seals. Fluid on the pads significantly worsens their performance.
Check it yourselfIf you see fluid or oil stains on the disc or pads, don’t ride and contact a mechanic.
What we doWe find the leak, replace the brake or the affected part, bleed the system and test that it works.