Bridgestone Potenza RE050A RFT Tires
This is Bridgestone's Max Performance Summer run-flat tire developed exclusively for specific Audi, BMW, Maserati and Mercedes-Benz vehicles. Designed to give temporary extended mobility for a distance of 50 miles at up to 50 mph, this tire will get you home even after a puncture has allowed complete air pressure loss. Bridgestone developed the Potenza RE050 RFT to provide good traction along with responsive and predictable dry and wet road handling. It is not intended to be driven in near-freezing temperatures, through snow or on ice.