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      11-17-2011, 03:10 AM   #71
Kasé Zomé
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Drives: faster than my demons can fly
Join Date: May 2011
Location: SoCal

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2011 E90 M3  [4.50]
Originally Posted by Mark Chen View Post
oh really?? I have no idea about this.
I thought that the OEM 19" are 8.5 on front and 9.5 on rear
I could be wrong...
Yep. Notice that there's only a 1" delta between front and rear? This is so that your tire sizes will maintain the same ratio. So if you upgrade, maintain the same ratio as much as possible to maintain the balance of the car. However, if you're only interested in aesthetics, then it doesn't matter. Run what you think looks good.
1998 M3/4/5
2011 E90 6MT ZCP Slicktop (SOLD)