These Mickey Thompson ET Street S/S tires are D.O.T. approved for the street while providing excellent traction at the race track. They feature proven polyester-ply, steel belted, tubeless radial construction that provides strength and durability for excellent ride control on the street. The R2 compound provides quick and consistent traction at the race track with little burnout required. The tires have minimal tread void for excellent dry traction, strategically placed to aid in hydroplane resistance if you get caught in the rain. The stiff sidewall provides excellent stability and makes them ideal for use on cars with automatic transmissions. Don't think stick shift cars are left out though, many competitors have found great success with ET Street S/S tires on their manual equipped cars.