Why are my bike brakes not working?
If either brake isn’t working properly, it’s likely to be a result of slack in the cable – unless your bike has hydraulic brakes, in which case they probably need ‘bleeding’ to remove air bubbles. (That’s a job for the bike shop or a confident home mechanic.) Is the brake properly set up? Examine the brake pads.
Why are my brakes not working?
This can be due to a number of problems: a leak in a brake line, a loss of pressure within the master cylinder itself due to a failed seal, or air being introduced into the braking system. Your first reaction to encountering spongy brakes should be to rapidly pump the brake pedal with your foot.
How often should you replace bike brake cables?
Cables should be replaced when they are worn causing the bike functionality to react to that wear and tear. This is every 2,000 to 3,000 miles. Specific damage to the cables or housing is also cause for replacement.