Bicycle Mechanics - Brake cable/lever issue
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05-31-09, 08:47 AM
Can anyone advise on my prob. I have changed the front brake cable on a friends bike which was easy enough. However, now the brake lever will not return to it's normal position when released. This uses a linear system in which also does not return to its original position (which was the issue I was trying to remedy but have created another one).
05-31-09, 03:28 PM
Sounds like there is a bind in the cable somewhere preventing the cable from returning. Are thes V's or road brakes?
cable (snag) or return spring might be worned out.
First check to make sure that, as others have mentioned, there isn't any issues with the cable.
Second, disconnect the quick release on the brakes (If not equipped with a quick release, loosen the cable), squeeze the brake so it touches the rim (as it would under normal braking) and let go, to see if the brake returns to its normal position without the cable attached. I'm thinking your problem might be in this area...If not, proceed.
Next step is to make sure the lever springs back into position. Personally I find it best to remove the cable from the lever at this point, just to make sure it doesn't get in the way (because it's still loose from step 2). Simply squeeze the lever and make sure it returns to the normal position, but the spring varies form lever to lever. On my M510 STI levers, for example, they are VERY springy and will snap back to their normal position pretty quickly. But most generic levers will spring back, but probably not with quite the "snap" that I just described.
Hopefully that should help out. If not, the credibility of my advice suffers :P
05-31-09, 04:17 PM
Linear or V brakes have a return spring that may be dis-engaged or even broken.
Edit- Compare it to the rear brake mechanism.
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