Cosmo
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Registered: 29th Mar 01
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Anyone tell me how to work this out??
Thanks
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3CorsaMeal
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Registered: 11th Apr 02
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circumfence of a circle
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3CorsaMeal
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Registered: 11th Apr 02
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3.14 x the diameter
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blebo
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Registered: 18th Apr 02
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Need to now the tyre size then do 3.141 x diameter
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Cosmo
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Registered: 29th Mar 01
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so if I had tyres of 255/45/20 what would it be
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blebo
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Registered: 18th Apr 02
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75 inches I think
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Cosmo
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Registered: 29th Mar 01
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that seems too big!!
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blebo
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Registered: 18th Apr 02
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20 inch wheels plus 2 x 45 mm each side for the tyre wall = 23 inches
23 * 3.141 = 72.243
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3CorsaMeal
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Registered: 11th Apr 02
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45 isn't mm, its a percentage of the width
so start with 255/100 * 45
then add that to the 20" of wheel. and multiply by 3.14
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Cosmo
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Registered: 29th Mar 01
Location: Im the real one!
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so thats 1904mm, but from what I've got here
a 205/55x15 has 607mm and
a 215/40/17 has 606mm
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