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Old 01-16-2013, 04:43 PM
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Reading tire size

I'm hoping this will help other people too. It's one of the things I just can't wrap my head around. How to you read the sizes on a tire? I know the first is the width, second is the aspect ratio, third is wheel diameter. But what does this mean?
Width i get, but what do the numbers mean? Is it mm or something cause the number is always huge.
Aspect ratio seriously tells me nothing. Why not just state the overall diameter of the tire? How does one calculate the diameter?
Wheel diameter is obvious, but what about the width?
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