HOOSIER Sports Car DOT radial tires are track and competition DOT tires developed for drivers who compete in driving events where responsiveness and high levels of grip in dry conditions are desirable. They feature revised symmetric internal construction that uses nylon cord radial carcass plies reinforced by two lightweight steel belts and a spirally wrapped circumferential nylon cap ply under the tread. Hoosier Racing Tires extensive testing has shown that the radial tires produce crisper steering response and improved transitional performance. The Hoosier Sports Car DOT radial tires have also shown better overall wear due to their improved tread profile. They feature two symmetric Formula One style circumferential tread grooves. Additionally their symmetric tread design allows them to be mounted on either side of the car (and later be remounted inside-out to further extend their life). Beginning with a tread depth of 4.5/32 they will not require shaving for competition- however they will benefit from heat cycling before competition to enhance wear and provide more consistent performance.