Shop Talk

What do those numbers on your tires represent?

Shop Talk on February 3, 2020
The numbers in the tire size refer to its width, aspect ratio, and wheel diameter. “185/75R14″ means the tire is 185 mm wide, has an aspect ratio (that is, the width divided by the height) of 75%, and fits on a 14” rim. “R” means radial tire. They’re all radials nowadays. Speed ratings are usually […]