Confused on tire size...
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06-18-2007, 03:56 PM
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06-18-2007, 04:24 PM
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06-18-2007, 05:23 PM
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Originally Posted by chumFX4
305 is the section width in millimeters.
50 is the sidewall height as a percentage of the width.
305mm=12 inches
12 inches x 50%=6 inches sidewall height
(sidewall height x 2) + rim diameter = overall tire height
(6 x 2)+20=32 inch tall tire
A 315/70 is about a 35" tire, I think.....
50 is the sidewall height as a percentage of the width.
305mm=12 inches
12 inches x 50%=6 inches sidewall height
(sidewall height x 2) + rim diameter = overall tire height
(6 x 2)+20=32 inch tall tire
A 315/70 is about a 35" tire, I think.....
#6
06-18-2007, 11:52 PM
yeah you were right chum in figuring the size, the first number is the width in mm, the second number is the aspect ratio which is a % and is multiplied by the width to figure the sidewall height. a 315/70 would most likely be found in a 17'' rim size and would be basically a 35x12.50. A 305 is 12 inches wide.