How are tires in the United States graded?

Tires in the United States are graded based on traction, temperature, and tread wear, which are critical factors in their performance and safety.

Traction refers to how well the tire can grip the road surface, particularly in wet or slippery conditions. This is a vital feature for preventing accidents and maintaining control of the vehicle. Tires are assigned a grade that indicates their ability to resist hydroplaning and provide sufficient stopping ability during adverse weather conditions.

Temperature grading assesses a tire's ability to dissipate heat. A tire that runs too hot can lead to premature wear or even failure. This grading helps drivers choose tires that can withstand the heat generated during use, especially in high-speed driving situations or in warmer climates.

Tread wear grade provides information on how long a tire is expected to last based on its tread design and composition. A higher grade indicates a longer expected lifespan before the tread becomes too worn to provide safe traction.

Together, these three grades help consumers make informed decisions when selecting tires, ensuring they choose products that meet safety standards and are suited to their driving needs.