Quote:
Originally Posted by claykin
..................19's fit the wheel openings of the F30 better, especially if you have MSport ...................
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It's an optical illusion. They don't fit any better. With 403Ms you have more wheel and less tyre and with 400Ms you have more tyre and less wheel. The overall diameter is the same in both cases as otherwise your gearing would be buggered.
Oh, and because of this the 400Ms are less easy to kerb.
