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Everything You Need To Know About Tires: Understanding Tire Speed Ratings - Part #2

This episode of Tires 101, Steve and the Tire Man go through tire speed ratings. The recommended speed that a tire can sustain over time is indicated by its speed rating. In other words, it's the top speed at which a tire may operate before losing its intended performance. You'll have greater control and handling at faster speeds if the speed rating is higher. The speed rating system was created to aid in regulating the safe operation of tires at set speeds. The official speed rating of a tire is denoted by a letter from A to Z, with speeds ranging from 3mph to over 5km/h (5mph) (186 mph). The maximum speed a tire is approved for is displayed using this rating system (see below). It does not represent a tire's full performance potential.

In this episode, you'll learn: 

  • What is a tire speed rating? 
  • Why speed rating works for one vehicle but maybe not so well as another.
  • Tire composition and uses for specific driving styles.
  • How many speed ratings are there?