where can i find hub rings for 5 series bbs rims?

[831BIMMER]

ok i have a 97 m3 and i want to put the bbs rims on there is it easier to fit the 17in rather than 18in?are the 17 and 18 have different offsets?and where can i find the center hub rings to make them fit i have not found any info so if anyone can help that would be great.

[Gary@Tirerack]

Which exact BBS wheel? One you get it narrowed down (to one wheel type and size) I'll need the size, width and offset and the style of the wheel. I can then do some research to see if we can get correct hub rings for it.