Originally Posted by mx_599

that is because they don't want residue left behind to affect performance. that is why i said non residue. there is absolutley NO HARM in spraying a rag or what have you with brake cleaner, spinning the wheel, and pinching the cloth around the two sides of the rotor to clean.

please....anyone that says this is bad truly does not know. i don't have to be a bicycle expert to know this. the rotor is steel...it's okay, you're not going to hurt it