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      03-25-2010, 09:33 AM   #25
dekaliber
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Drives: '07 Z4MC, '11 JCW, '18 Z06
Join Date: Mar 2008
Location: Los Angeles

iTrader: (1)

I'm curious whether Z4 3.0si wheels will fit on an M (style 135 or 203). I have a set of 135s that I currently use for my Z4 in the winter, and would prefer to keep them if I can when/if I get an M Coupe.

The front/rear sizes are:
8x18 ET 47
8.5x18 ET 50
All wheels are fitted with 225/40R-18 winter tires (same size as Z4 fronts).

Based on the calculator at http://www.rimsntires.com/rt_specs.jsp, the diameter would be almost 1" shorter and the wheel would be 0.2" closer to the suspension/brakes both front and back. Is this perceptible/safe?
Appreciate 0