Pirelli P Zero Run Flat (PZ4) tires are Max Performance Summer tires derived from Pirelli's Formula 1 experience and developed for use as Original Equipment on the BMW 7 Series, Mercedes-Benz E-Class and MINI Clubman, with select replacement tire sizes also included in the lineup. P Zero Run Flat (PZ4) tires are designed for the drivers of sports car, sport coupes and high-performance luxury sedans and provide the convenience of temporary extended mobility in the event of complete air pressure loss. Pirelli's warranty does not cover tires that develop compound cracking due to use in ambient temperatures below 45° Fahrenheit (7° Celsius), so the P Zero Run Flat (PZ4), like all summer tires, is not intended to be driven in near-freezing temperatures, through snow or on ice.The P Zero Run Flat (PZ4) utilizes a special high silica content summer-only rubber compound that is molded into an asymmetric tread design focused on comfort, low rolling resistance, low noise and lateral hydroplaning resistance. Wide, circumferential grooves and lateral notches are utilized for efficient water evacuation at speed or while braking to improve resistance to longitudinal hydroplaning.The tire's internal structure includes twin steel belts reinforced by a hybrid nylon and Kevlar ZeroDegree cap ply. Based on the desired performance characteristics of the Original Equipment application, the tire casing will be two-ply polyester or one- or two-ply rayon, with either symmetric or asymmetric construction. With many combinations of material and orientation available during development, tire designers have the ability to fine-tune the tire's internal construction to further match the personality of the automobile for which it is engineered.The sidewalls of the P Zero Run Flat (PZ4) feature additional reinforcement to provide self-supporting run-flat capabilities of up to 50 mph for up to 50 miles (80 km/h for 80 km). Due to these restrictions, it is imperative drivers be notified when a loss in tire pressure occurs and requires the vehicle be equipped with a tire pressure monitoring system (TPMS) to detect and signal tire pressure changes. Though they cannot be labeled as run-flat tires, tires branded with MOExtended or MOE on their sidewalls offer run-flat-like characteristics by delivering limited temporary extended mobility after a puncture results in complete loss of air pressure. Because MOExtended or MOE tires do not have the same speed and distance endurance of conventional run-flat tires, they should not be substituted in any situation where a conventional run-flat tire is required. To confirm what your vehicle needs, check our Original Equipment tire listing for your year, make and model or see your vehicle owner's manual. Related Information: Learn more about MOExtended/MOE tires here.

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P Zero Run Flat (PZ4)