There's a lot of numbers associated with picking out tires for your car, but one you may not look too closely at is arguably the most important: speed rating.

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 ...

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

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.

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 ...

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 ...