i have a hardrock pro disc. Recently I've been getting some loud sqeaking when i feather my rear brake. It doesnt make the noise if I apply the brake completely. Also. I've cleaned the rotor thoroughly with rubbing alcohol and it didnt seem to do anything. I tried tightening my brake cable down on the disc brake side as well and nothing. All the bolts seem tight down there as well. The bike has about ~150 miles on it, so I'm not sure if maybe i need a new brake pad? Im not much of a bike a tech so any helpful hints would be appreciated.
2003 Specialized Hardrock, 2004 LOOK KG386i, 2005 Iron Horse Warrior Expert, 2009 Pedal Force CX1
My mechanical disc brakes squeeled pretty badly (although it was all the time) until I spent a few minutes and got the alignment between the caliper/pads and disc as perfect as my eyesight allowed. They are silent now.