I know I read on here ages ago about this but can't for the life of me find the thread. It could be coz I am on dial up and it takes 5 minutes to load a page!
I am rebuilding the front subframe and have all the bits back together. My discs have been sitting for about 5 months and have nice coating of rust on them. I also managed to get a bit of grease on them when removing them. Its amazing I didn't get more as I ended up coated in the stuff.
I am wondering if I should get them machined to get the surface rust off and clean them up a tad. I am also thinking about just buying some slotted and cross drilled discs. as these look great and any additional upgrades to my mini's braking can't be a bad thing
They are 8.4 by the way.
http://www.minisport.com.au/prod822.htm