The Bridgestone Potenza S001 RFT is a high-performance, self-supporting run-flat tire designed specifically for BMW 3 Series sedans from the 2012 model year and onwards. It is intended to provide temporary extended mobility for up to 50 miles at speeds of up to 50 mph, even after experiencing a puncture that leads to complete air pressure loss. This tire is not suitable for use in near freezing temperatures, snow, or on ice. The Potenza S001 RFT offers excellent sports performance in both wet and dry conditions. Its asymmetric design features a large outboard shoulder, interlocking tread blocks, and a central circumferential rib, all of which contribute to enhanced steering response, high-speed stability, and precise cornering. The shoulders of the tire have notches to expel water to the sides, while lateral grooves in the intermediate ribs help pump water into the wide circumferential grooves to prevent hydroplaning. Internally, the tire is built with a lightweight belt package consisting of twin steel belts supported by a spirally wrapped aramid/nylon cord reinforcement. This construction reduces rolling resistance, improves ride quality, and ensures durability at high speeds. The Potenza S001 RFT also features Bridgestone's Side Support Run-Flat technology, which strengthens the sidewalls to temporarily support the vehicle in the event of a puncture and air pressure loss. When installing the Potenza S001 RFT tires, it is recommended to use them in sets of four to ensure optimal handling characteristics and tire performance. Mixing them with other tire models is not advised. It is worth noting that while there are tires branded with MOExtended or MOE on their sidewalls that offer run-flat-like capabilities, they do not have the same endurance as conventional run-flat tires and should not be used as substitutes in situations where a run-flat tire is required. To determine the appropriate tire for your vehicle, consult the Original Equipment tire listing or refer to your vehicle owner's manual. For more information on MOExtended/MOE tires, please refer to the provided link.