Toyota Tire Care

Safety Ratings For Cars: Speed Rating & Load Index

There's always more to learn at Toyota of Greenville. Here's the word on more of the words and symbols written on your tires.

Speed Ratings

Every tire is designed to withstand a specific level of speed over an extended period of time. The longer you drive at a certain speed, the more heat a tire will generate from the friction of that tire churning against the road surface and the side wall flexing.

A tire's speed rating indicates the ability of that tire to handle a certain level of prolonged speed - and the heat it produces - without suffering deterioration in performance.

All tires in the in the U.S. are designed to maintain legal U.S. speed limits. A tire's speed rating must match the maximum driving speed of the vehicle it's mounted on.

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