BMW M3 Forum (E90 E92) - View Single Post - For track, why 18 inch wheel instead of 19?

Z K · 10-18-2011, 01:12 PM

A lot more tire selection with 18" sizes. Also, less rotational mass along the outside diameter with a smaller rim.

10-18-2011, 01:12 PM	#7
Z K Major General 1889 Rep 5,506 Posts Drives: E90 M3, G20 M340i Join Date: Jul 2011 Location: San Francisco iTrader: (3)	A lot more tire selection with 18" sizes. Also, less rotational mass along the outside diameter with a smaller rim.
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