For sports cars, be sure to compare front and rear tires because they may be different. Here’s what those cryptic sidewall codes mean for a typical tire. Size: P235/65R17 is a common one.

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A tire's section width (also known as cross-section width) is the distance from the widest point of the inner sidewall to the widest point of the outer sidewall, excluding any cosmetic ribs or ...

19. Another thing to consider when trying to find the current rim size is to see if it’s marked, and ours was—clearly stamped 17x8.0 on the fronts and 17x9.0 on the rears.