Tire Size 315=
06-10-2007, 11:26 AM
#3
315/75 would be a 35x12.50 i think. But 315 doesn't always mean 35" tall. the second number (75) is the ratio, so that determines how tall the tire is with the first number.
06-10-2007, 02:34 PM
#4
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tire # gazzintas
315= 315mm tread width
divide by 25.4 to get inches
12.40 inches
315 is always going to be 12.4 inches wide
the diameter of the tire will depend on the following numbers
the 75 refers to the height of the sidewall in percent of the width of the tread.
Each side is as tall as 75% of the tread width
315x.75=236.25mm
236.25/25.4=9.3inches each sidewall
x2 sidewalls=18.6"
add the rim diameter(17")
18.6+17=35.6" tire dia.
So a 315/75-17 is roughly a 35x12.5-17
Make sense?
divide by 25.4 to get inches
12.40 inches
315 is always going to be 12.4 inches wide
the diameter of the tire will depend on the following numbers
the 75 refers to the height of the sidewall in percent of the width of the tread.
Each side is as tall as 75% of the tread width
315x.75=236.25mm
236.25/25.4=9.3inches each sidewall
x2 sidewalls=18.6"
add the rim diameter(17")
18.6+17=35.6" tire dia.
So a 315/75-17 is roughly a 35x12.5-17
Make sense?
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