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Old Dec 2, 2007 | 09:11 PM
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Martin-Hadland
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From: Birmingham
Default Re: rolling radius and tyre info req

Originally Posted by costina
Cannot be bothered to look thru hundreds of mags is there a site which can tell me the info

cheers

Paul
Just do the sums

225/40x18

Tyre wall is 40% of 225 x 2 = 180mm

Wheel is 18" x 25.4 = 457.2mm

They total 637.2 which is the overall height.

Multiply 637.2 x 3.142 = 2002.80mm

Job done..
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