Tire Decoding - how to read tire size numbers & sidewall codes

how to read tire size numbers and decode sidewall codes: Tire size numbers explain a tire's width, sidewall height, construction type, wheel diameter, load capacity, speed rating, and age. These standardized codes ensure the tire fits your vehicle correctly and operates safely within its design limits. If you have ever looked closely at your tires, you have probably noticed a long string of letters and numbers molded into the sidewall. While they may look confusing at first glance, each part of the tire code follows a logical sequence. This article walks you through the sequence of decoding tire sidewall codes so you can confidently read tire size numbers and understand exactly what each marking means.