The Potenza S007 RFT Max Performance Summer self-supporting run-flat tire provides 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 and was originally developed as Original Equipment for the 2013 Ferrari F12berlinetta. Designed for high-speed vehicles requiring maximum levels of lateral force due to their sporty setup, Potenza S007 RFT tires are performance tuned for dry and wet conditions. However, like all summer tires, they are not intended to be driven in near-freezing temperatures, through snow or on ice.Bridgestone is proud to have been selected to develop tires for the most powerful Ferrari series road car ever produced. The Ferrari F12berlinetta ushers in a new generation of Ferrari 12-cylinders in the form of a car that delivers unprecedented performance (0-125 mph in 8.5 seconds and a top speed over 207 mph) from an exceptional new engine, innovative chassis design and sophisticated aerodynamics.Bridgestone engineers designed the Potenza S007 RFT based on construction and material technologies developed during Bridgestone's 14 seasons as official FIA Formula One tire supplier. To meet Ferrari's specifications, these technologies were combined with Bridgestone's advanced knowledge of tires at the molecular level, helping to optimize the mixture ratio and reaction between carbon, silica and rubber, which reduces rolling resistance and fuel consumption.Potenza S007 RFT tires feature an asymmetric tread design with wide outside shoulders and unyielding notched-ribs to enhance steering response and grip on dry surfaces. Wide circumferential grooves help channel water through the tire to preserve wet traction.The tire's internal structure includes twin steel belts reinforced with two layers of spirally wrapped nylon to blend high-g cornering with high-speed durability. The casing features rayon cord and a specially tuned construction to enhance cornering grip, even under the most severe load conditions.NOTE: Run-flat tires are only recommended for vehicles that are originally equipped with self-supporting run-flat tires and equipped with a tire pressure monitoring system.