The part I circled on the rotor, it isn't bad to have that is it?

 

Hey, that looks familiar...lol.

Im not expert, but I would say no. Seeing as that is my rotor and all, I was going to re-use it up until I spotted the chunk missing around where the apex seals go, and the gouges it made . Those discoloration sports were the least of my worries . Id honestly say that its probably not a good thing that it has them, but I wouldnt let it stop me from using the rotor unless someone here has a good reason why it should.

~T.J.

 

Yeah, it is your rotor

I posted this in the thread you made when you first showed us the damaged apex groove, but I didn't get an answer there so I figured I'd post it in a seperate thread. You get royalties to any money I make with this pic

I have a set of rotors that have spots on them like that. No scatches or grooves, just that same sort of discoloration.