For most people, a "bad" brake rotor is one with a few scratches and grooves in the surface that cut into the pad, or one thats wavy and warped. But theres a lot more going on with your brake rotors than you might see on the surface -- and even thats bad enough as it is. What is a "Bad" Rotor? A lot of things can go wrong with a brake rotor. Most obvious are mechanical faults like grooves
