CM-080725 Reading a Tire Sidewall

Description

Every tire’s sidewall tells an important story. A code like P225/60R16 94T reveals the tire’s size, construction, load capacity, and speed rating. The P indicates a passenger vehicle tire, while 225 is the width in millimeters. The 60 aspect ratio shows the sidewall height as a percentage of the width, balancing ride comfort and handling. R means radial construction, and 16 is the wheel diameter in inches.

The service description is just as critical: 94 is the load index, meaning each tire can support up to 1,477 pounds, and T is the speed rating, safe up to 118 mph. Understanding these markings helps ensure proper fit, performance, and safety for every vehicle and driver.