DOT

DOT refers to tires that are certified by the U.S. Department of Transportation to meet safety standards for legal use on public roads.

In motorsport, DOT-approved tires represent a balance between high performance and street legality. Many racing series, track days, and time attack events require participants to use DOT-certified tires to ensure a baseline level of safety while still allowing for competitive driving.

R-compound DOT tires are especially popular in motorsport, offering near-racing levels of grip while maintaining street legality. Examples include the Hoosier R7, Toyo Proxes R888R, and Nitto NT01. While these tires are technically street legal, they typically wear faster than regular street tires and may perform poorly in wet conditions.