How to Read Tires and Rims: Easily Determine Size, Markings, and Details

To read tire specifications, start with the notation 235/55R18. The number 235 is the tire width in millimeters. The 55 is the aspect ratio, showing the tire height is 55% of the width. The ‘R’ indicates radial construction, and 18 is the rim diameter in inches. This information helps you understand tire size and performance. … Read more