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Question:

when tire size #s increase specifically height is the tire taller or is it the opposite?

my tires are 235/75-15 . i know the 75 is height but is the higher the number the taller the tire or is it opposite

Answer:

The first number is the overall width in millimeters. The second number is the height of the sidewall, in percent, in relation to the first number (your example means the sidewall height is 75% of the 235mm width). The last number is simply the inner diameter, which is the same as the rim it's mounted on. So no single number determines the overall height of the tire.
shock could be bad causing the tire to bounce. just cause a car is new doesn't mean the parts can't fail
heat too hot to hold hand brake caliber or wheel bearing maybe type into search box how to read tire wear wil give you a ideal of what your looking at or a tire store to have it check best advice
yes and if you need taller you ll need to up your wheel size to 16 or 17
75 represents the height of your tire. That number is called the aspect ratio. It is a percentage of the height of the tire to the width of the tire. In this case, the height of the tire is 75% of the width (the first number). 235/75R15 The 235 is the width of the tire in millimeters. The 75 is the aspect ratio or the height of the tire as a percentage of the width of the tire The 15 is the rim size The R means radial. In your case you would take 235mm times 75% (.75) 176.25mm You have to do the math on each tire to determine the height of the tire then compare the results. A 225/80R-15 has a tire height of 180mm. It is a narrower tire with a higher aspect ratio, but nearly the same actual height.

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