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I'd like to fix my bike's brakes but I'm not knowledgeable about the subject. I have brakes like the pic and the front left brake isn't moving away from the wheel at all any more and is rubbing against the rim - what exactly should I do to fix that?
Also my brakes have gotten loose in general, I know I'm supposed to undo the silver nut a bit and pull the cable then screw the nut back in, but how do I tell when I've pulled the cable "enough"? I have a brake cable tensioner but never figured out how to use it. Do I do all of this before or after fixing the above problem with the brake pad rubbing against the rim?
Thanks for any help.
