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      10-08-2008, 04:23 PM   #25
Nikolas
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20

 
Drives: 996 TT
Join Date: Jul 2007
Location: Sierra Mountains


Posts: 2,068
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Quote:
Originally Posted by neejkoob View Post
I think stock 325XI with sports package has staggered 225/45-17 in front and 255/40-17 in rear = difference in overall diameter between front and rear = 0.06 inches or 0.24028 % difference

235/35-19 in front and 275/30-19 in rear = difference in overall diameter between front and rear = 0.02 inches or 0.07849 % difference

I think this is even better than stock set up
It also varies slightly with tires. As an example I have Kumho MX's on my carrera at 225/45/17 f and 255/40/17 rear. The tires from the mfr are exactly 25.0 diameter both front an rear.