Max Performance run-flat tires provide temporary self-supporting run-flat mobility for a distance of 50 miles at up to 50 mph, even after a puncture has allowed complete air pressure loss. They are designed for serious driving enthusiasts who want a combination of a performance appearance, competent handling and Z-speed rated (or higher) durability with enhanced dry and wet traction. Often used as Original Equipment (O.E.) on powerful sports cars, performance coupes and high performance sedans, Max Performance run-flat tires are not intended to be driven in near-freezing temperatures, through snow or on ice.