The Pilot Sport ZP's directional tread design features a continuous circumferential center rib flanked by a 'W'-shaped tread pattern. The continuous center rib sharpens steering response and provides communicative road feel while the swept back lateral grooves efficiently evacuate water from under the contact patch to resist hydroplaning and enhance wet traction, while reducing tire noise on dry roads. On the inside, two high-tensile, lightweight steel cord belts, and spirally wrapped nylon cord utilizing Michelin's BAZ (Banded At Zero) Technology improves steering response and resists distortion while enhancing ride quality and high speed durability. Ultra-reinforced sidewalls promote powerful cornering and help maintain the ideal shape of a running tire for better tire/wheel uniformityhe Michelin Pilot Sport ZP (Zero Pressure) is Michelin's Max Performance Summer self-supporting run-flat tire developed to provide temporary continuing mobility in the case of complete air loss due to a puncture for the drivers of Dodge Viper SRT 10 cars. Michelin Pilot Sport ZP tires are designed to providing exotic performance cars with progressive handling, exceptional feedback and refined road manners in the dry while extending their capabilities in the wet.