Tire markings aren't random, they reveal crucial details about your car's capabilities. Find out what ZR means and why it ...

Each letter in the tire speed rating chart corresponds to a maximum speed limit. The chart is arranged alphabetically from A to Z, except for H which is unconventionally placed between T and V.

However, a Euro-Metric tire can replace a corresponding P-Metric tire, increasing the load-carrying capacity. Speed Rating (H) The last letter in the tire information sequence indicates the speed ...

Tyre speed ratings explained: chart, rating letters and what they mean Tyre speed ratings can be confusing. Heres a guide on what these mean.

The jumble of numbers and letters on the side of your tires is confusing. We’ll tell you how to crack the code so you can understand what tire sizes mean.

It turns out Y-rated tires hold up to a lot more speed than you'd expect, but 800+ mph is a bit much for any rubber.