The rear brake (calliper) on my road bike sticks. When I pull the brake it pulls down but only half springs back and there's then slack in the leavers. This is causing rubbing on the rim.
It's a fairly new bike (last year) so I wouldn't think it's just normal wear and tear. I've tried adjusting the tension using the adjuster and rebalancing but it doesn't seem to fix it.
Any idea what the problem is and how it can be fixed?