Learn essential performance tire repair guidelines, including speed ratings, structural damage, and repair limitations for ...

One of the most important pieces of information on a tire is its speed rating. This is indicated by a single letter, such as V, W, or Y. The letter corresponds to a maximum safe speed for that tire.

the Michelin Primacy MXV4 scored top marks for H-rated tires and Michelin Pilot Exalto A/S won in the V-rated all-season radial category. The Michelin X-Ice XI 2 topped CR's ratings for winter ...

That last letter is important, as all H rated versions of this tire come with a 75,000-mile limited warranty, vs. a ...