This is good info - as correctly specified, if you are getting an 8.5" rim you want to stay close to the factory offset, which is ET30 as below:
Quote:
Originally Posted by nogren
For a 8.5" rim an offset of 32 closer to the factory option, which is 30.
I made this table of what BMW offers:
8,5x21 ET30 (245/40R21)
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