Does anyone know what the largest outside diameter of this tire would be?
2006-12-27 08:04:01 · 5 answers · asked by Mark N 1 in Cars & Transportation ➔ Other - Cars & Transportation
Convert the metric measure to inches by dividing by 25.4. (285 ÷ 25.4 = 11.22inches)
Multiply the section height in inches by the aspect ratio (in this case, 75) to determine the section height. (11.22 x 75% = 8.42 inches)
Multiply the section height by 2, then add the wheel diameter as noted in the tire size. In this example, the wheel diameter is 18 inches. (8.42 x 2 + 18 = 34.84 inches – Overall Tire Diameter)
This formula will work for any metric or P-metric sized tire
2006-12-27 08:13:14 · answer #1 · answered by Beej 3 · 0⤊ 0⤋
285 75 R18
2016-12-08 16:16:40 · answer #2 · answered by ? 4 · 0⤊ 0⤋
285 75 18
2016-10-06 03:16:52 · answer #3 · answered by ? 4 · 0⤊ 0⤋
The tire size is figured like this the 285 means the tire is 285 mm wide when mounted on the recommended size rim there is about 25.5 mm per inch ( I don't remember the exact number.) and the 75 means it is 75% as high as it is wide so using this figure you would have a tire about 35 inches tall. 11.17 inches wide X .75 = 8.37 you will need this figure for both the top and bottom of the tire to find out the diameter.. so 8.37 + 8.37 + 18 = 34.74 inches tall
2006-12-27 08:20:17 · answer #4 · answered by Mark G 4 · 0⤊ 0⤋
"285" is the width of tyre in millimetres
"75" is the ratio of sidewall to tyre width, and there's two sidewalls, so 285x0.75x2 = 427.5 mm
"R18" is the wheel diameter = 457.2 mm
So the total is the sum of the sidewalls and wheel diameter,
427.5 + 457.2 = 884.7 mm, or 34.8 inches
2006-12-27 08:11:42 · answer #5 · answered by abc-to-xyz-12345 2 · 0⤊ 0⤋