Question:
I do not understand the conversion of tires. A 235/75/15 if i convert that first number from mm in to inches it only comes out to be 9.25. So where does a 31 inch tire come from. Like what is a
1. 31
2. 32
3. 33
4. 34
5. 35
someone convert those. I understand the last number th 15 0r 16 so on.. and the middle number not a clue eather
Answers:
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the middle number is the aspect ratio pretty much a percent of the height of the sidewall to the width of the tireIS having ZERO points on your driving record good if you want to get a job as a DRIVER?
on the other hand say a 31X10.5 is actually dimentions of the tire 31 inches high 10.5 inches wide
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width, sidewall, diameter (in inches) or something like that. maybe sidewall, width diameter (in inches) i get confused easy.What is your favorite type of car?
hi,your example of 235-75-15 is as follows :-1. 235mm wide tread the area of tyre in contact with the road.
2. the 75 refers to the ratio of the side wall height of the tyre to the width of the tyre. therefore, your tyre would have a side wall height of approx 184mm.
3. 15 is the wheel size in inches.
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The first number is the width of the tread in mm, the second number is the aspect ratio of the side wall, and the third number is the size of the wheel/rim.What type of energy will cars most likely run on 20 years from now?
For you example, a 235/75r15 tire would have a tread width of 235 mm and the sidewall would be 75% of that, or 176mm, which in inches is 9.25 inches wide and 6.9 inches tall. To get the total height of the tire, take the sidewall height, double it and add the rim/wheel size.
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Example: you 235/75r15 tire had a sidewall of 6.9 inches, so overall size would be 6.9+6.9+15=28.8 inches.
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So your example tire (235/75r15) would measure 9.25 inches tread width and 28.8 inches tall on a 15 inch rim/wheel, and it has a sidewall height of 6.9 inches.
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The best way for you to find tires that size is to go to a tire shop and ask them, or use one of the many online tire size converters, or (i assume these are for a truck/suv), you could also get tires in SAE sizes which would measure 31X10R15 (like on my brothers truck), which is a 31 inch tall by 10 inch wide tire on a 15 inch wheel.
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