Your speed-rated tires are expensive, so naturally if there's a leak, you'd want to fix them. But be careful: those repairs ...

This rating corresponds to a list of speeds on a tire speed rating chart. The speed rating is typically selected to match the vehicle's top speed. In the example "H", the letter indicates that the ...

Confused about the pressure number on your tire? Learn why the tire’s pressure rating isn’t what you should use and what to ...

All the numbers refer to measurements while the letters refer to tire types and ratings — as we’ll explain later. Let’s tackle the numbers first. As an example, we’ll consider this tire ...

Consumer Reports deciphers the cryptic sidewall codes on a typical tire, explaining how to decode tire size, load index, maximum pressure, speed rating, and more.

The sidewall of your car's tires has a litany of numbers and letters that describe the brand, make/model, size, load rating, speed symbol, and other vital aspects of a particular tire.

Speed rating: A letter denoting the tire’s maximum speed when carrying the load defined by the load index—and not how fast you should drive! Standard all-seasons are usually rated T (118 mph ...