Tire Guide

On the side of your tire you will see many numbers. One set of numbers is the tire size. It will have a three-digit number followed by a two-digit number followed by another two-digit number.

An example of this is…. 205/45/R17

  • The first number is the width of the tire tread in millimeters
  • The second number is the ratio of that is the side way height to the width
  • The third number is the wheel diameter in inches
    • The R before the last two digit number stands for radial construction

After the tire size there will be a two-digit number followed by a letter.

An example of this is 94H

  • The number represents the load index
  • The letter represents the speed rating