ok, so my front disc breaks dont seem to grab the disc very well anymore. and they make a really loud squeel when they do. i took them appart and cleaned them with a toothbrush and rag, as well as cleaned the disc, even tried sandpapering it. nothing is helping it grab more. does anyone know whats wrong with my bike, or know how i can fix it?
my dad was thinking viniger since that would disolve any oil that may have gotten on it. but i figured i would ask my second family first.