The Turanza ER300-02 RFT is Bridgestone's ecologically oriented Grand Touring Summer run-flat tire developed for use exclusively on MINI Cooper, Clubman and Cooper S sedans. Turanza ER300-02 RFT tires are designed to combine traction, handling and comfort with temporary extended mobility for a distance of 50 miles at up to 50 mph even after a puncture has allowed complete air pressure loss. The Turanza ER300-02 RFT is designed for dry and wet conditions, but like all summer tires is not intended to be driven in near-freezing temperatures, through snow or on ice.The structure of the Turanza ER300-02 RFT has been specifically tuned for MINI Cooper vehicles and features Bridgestone Side Support Run-Flat technology reinforced sidewalls to support the vehicle after a puncture causes a loss of air pressure.Turanza ER300-02 RFT tires are also branded with Bridgestone's Ecopia symbol to signify eco-focused manufacturing methods are utilized during the tire's design and production, in addition to offering reduced tire rolling resistance to enhance vehicle fuel economy while they lessen the vehicle's environmental impact by helping reduce its carbon dioxide (CO2) emissions.