Extended Mileage Sport (EMS) tires ideal for those who love to travel longer distances without sacrificing performance All-new HGHM Compound (High Grip/High Mileage) consists of the latest generation of advanced polymers, high matrix carbon black and liquid silica HGHM Compound offers dry grip close to that of Diablo and wet grip that exceeds that competition; designed for high performance and reliability in all weather conditions Precision handling thanks to the Ideal Geometry Profile (IGP), which has been designed to maximize the shape of both front and rear tires The new compound guarantees an immediate warm-up at low temperatures - cold and wet pavement is no longer a problem; handling and grip are consistent all weather conditions Z-rated for speeds of 149+ mph