They are brand new Zimmerman rotors, which come with the Z coat on them. I think it's like a geomet kinda coating. It'll wear off on the braking surface after a drive but stick around everywhere else
I just installed 4 new zim rotors as well. I do want to ask how your Z coat is wearing off.
The rears are gone almost immediately after the bedding process.
The fronts, however look werid because the center portion seems to remain to-date. Leaving the edges shinny and center has a light grey z coat :| see pic
I just installed 4 new zim rotors as well. I do want to ask how your Z coat is wearing off.
The rears are gone almost immediately after the bedding process.
The fronts, however look werid because the center portion seems to remain to-date. Leaving the edges shinny and center has a light grey z coat :| see pic