Dual compound for low rolling-resistance on center and increased traction and control while cornering. Racing slick tread. Dual compound for low rolling-resistance on center and increased traction and control while cornering. Racing slick tread. DC - Dual Compound, two compounds comprised of a harder, longer lasting center and a softer gripping corner EPS - Exceptional Puncture Safety, offers an added layer of proprietary rubberized poly-fiber material between the tread and the casing to help prevent punctures