The Atturo AZ850DR tire is a D.O.T. compliant Drag Radial tire. Low skid depth, and race ready compound. It has a soft, sticky compound and a specialized construction designed to put power to the ground on a hard launch. It's a radial-construction tire — steel belts, perpendicular cords, the works — but everything about the compound and the carcass is optimized for one thing: traction off the line.