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Old 12-18-2008, 03:26 PM   #1
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Tire Size Question

Recently I won a certificate for a set of Kumho tires.
Kumho does not make 265/40/18.( Rear) What would be an alternate size

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Old 12-18-2008, 03:36 PM   #2
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265/40s have too high of an aspect ratio (sidewall to width). You would want 265/35s on an 18 inch wheel, so that you don't have a large bulging sidewall. Just be careful of holes in the road.

I'm presently running 235/40s up front and 265/35s on 18 inch wheels. Next time, I think I'll stuff some 275s or 285s on the rear.

2002 Boxster S
1973 911 Green FrankenMeanie
PCA DE Instructor circa '95

Last edited by jmatta; 12-18-2008 at 03:38 PM.
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