OK, I have seen lots of talk about not getting to big a tire on the rim
with the Kumho's, but how much is too big? 
 I have a 97 M3 with 17x7.5" front and 17x8.5" rear wheels.  
Is the 245/45 too big for a 7.5" wheel, or just right?  I currently am 
using 225/45 front, and 245/45 rear, but I have a set of 245 for all 
corners I will try this weekend in San Diego.
 
With the 225's in front, the car still understeers, and eats front tires
in about 45 laps even if I remount them inside out after 30 laps or so.
 
Chris Teague
 
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