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Old 05-17-2009, 11:00 AM   #3 (permalink)
Bicycle Bob
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Join Date: May 2008
Location: N. Saskatchewan, CA
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Appliance White - '93 Geo Metro 4-Dr. Auto
Last 3: 42.35 mpg (US)

Stealth RV - '91 Chevy Sprint Base
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A larger overall diameter (see Tire size calculator ) will usually help mileage a bit, but choosing low rolling resistance tires is good for a whole 5%.
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