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Old 11-13-2009, 03:53 PM
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jdmccright jdmccright is offline
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Re: Tire and wheel selection

The 205 is the tread width in millimeters and the 70 is the sidewall height as a percentage of the tire's width...long before NASA, leave it to the tire mfrs to thoroughly mix up units on anything (millimeters, percent, AND inches!)

So, the width is 205 mm, the sidewall height is 205x70%=143.5mm and the wheel diameter it fits is 13 in.
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