A tire’s certified speed rating is given a letter from A to Z, ranging from 5km/h (3mph) to above 300 km/h (186 mph). This rating system (see below) shows the top speed for which a tire is certified.

Wondering what your tire speed rating is? From W speed rating to V speed rating, we’ve got you covered. Use our chart to learn what speed rating means for your tire.

Tire speed ratings are set by the tire manufacturers and are an indication of the tire’s maximum speed capability in ideal conditions. The tire load index rating communicates how many pounds a tire can …

Tire speed rating codes are one of several important codes to pay attention to when you’re buying new or different tires. Let’s go over what they are, what they mean, whether they’re important and what to …

Jan 2, 2026 · Explore the complete Tire Speed Rating Chart (A–Y) with a clear speed index table. Learn what each rating letter means, mph & km/h limits.

Understand tire speed ratings and tread life with this helpful chart from the experts at BFGoodrich.

Find out your tire's speed ratings, what they are for, and how and where to find them.