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Old 03-10-2008, 12:57 PM   #12 (permalink)
s2man
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Join Date: Jan 2008
Location: Kansas City, MO
Posts: 128

Porthos - '96 Chevrolet Cavalier
90 day: 31.3 mpg (US)
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I went from 195's to 185 LRR's. While that single centimeter on the nominal width is a only 5% reduction, the actual tread width of the new tires is 19% narrower. 5.25" vs 6.5"

I also got rid of the "big 15's" and put on 14" rims. I wish I had before & after weights.
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