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Old 09-11-2011, 06:39 PM   #6 (permalink)
cfg83
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Join Date: Dec 2007
Location: Southern California
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1999 Saturn SW2 - '99 Saturn SW2 Wagon
Team Saturn
90 day: 40.49 mpg (US)
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Vekke -

195/65 15, one size up from stock, about 2+% larger diameter and 1 lb heavier than stock. I don't know of a specific law in the USA that prohibits tire size change. It's more a physical thing of fitting in the wheelwell. I could have fit two-sizes up from stock for a 4% larger diameter, but the tire jumped to 3+ lbs heavier.

CarloSW2
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