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      09-18-2012, 12:36 AM   #24
RobMCoupe
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Drives: 2007 Z4 M Coupe
Join Date: Feb 2010
Location: Bay Area

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I've been researching tire sizes for my 19" setup. The recommended up size is 245/35 front and 275/30 rear. They are slightly smaller diameter than stock. Assuming 19" wheels are same weight as stock, you'll loose weight because 19" tired weight less than 18" tires.

I think the choice between 18 or 19 depends on what is most important to the owner. Look, performance, ride , tire selection, etc....
Appreciate 0