>>1188239>could be the pads and rims are dirtytry decoupling the arms and spraying degreaser on the pad surface, scrub with a toothbrush, and rinse (I blast them with my waterbottle valve). degrease the rim but you can just use a rag on it until all the black shit comes off (it'll be a lot). Or rubbing alcohol works if you have enough.
if they now squeek, "toe in" the pads slightly so the most forward edge hits the rim first--we're talking millimeters, here.
>could be the pads are worn or of an old or shitty compound. There are slots molded into the pad surface that indicate the wear limit i.e. when they're worn out no more slots can be seen, they're smooth. If you see any metal poking thru the pad surface, your pads are blown and it's scraping your rim. If you upgrade, Kool Stop salmon compound are the standard rec, good and cheap.
>could be the adjustment use
http://sheldonbrown.com/http://parktool.com/and youtube videos for your type of brake, I think yours is a Vbrake, it's not too difficult.
