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      01-16-2013, 12:43 PM   #4
Just one more taste...

Drives: 2010 135i
Join Date: Aug 2012
Location: Shirley, MA

Posts: 1,419
iTrader: (14)

Reread my reply. An offset of 59 is ideal on these cars for fitting wide rubber in the rear. Lower offsets than that will result in more need for tire stretch and rolling fenders.

Concavity is almost directly related to offset. The lower the offset, the more concave you can get. There isn't much for really concave rear wheels.