View Single Post
      02-25-2013, 01:07 AM   #25
Second Lieutenant
BillionPa's Avatar
Drives: 335i
Join Date: Feb 2013
Location: USA

Posts: 288
iTrader: (0)

I have always used slotted rotors, and have never had the inside of the slots rust.

Generally there is a plating of some kind on the rotor that you need to wipe off before mounting the caliper, or it will get all over the pads, and that coating keeps the inside of the slots clean
BillionPa is offline  
Reply With Quote