The Blizzak LM-60 RFT is Bridgestone's Performance Winter / Snow run-flat tire developed exclusively for Mini Cooper, Mazda MX-5 and Lexus IS coupe and convertible models, as well as for BMW X5 sport activity vehicle and BMW X6 sport activity coupe drivers looking to combine winter driving traction on dry, wet and snow-covered roads 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 Blizzak LM-60 RFT is designed to combine the basic tread design of the Blizzak WS60 with a high silica tread compound to blend high-speed durability and dry road, cold weather handling with snow traction.Vehicle ApplicationTire SizeMINI Cooper195/55R16 87HMazda MX-5 Miata205/45R17 84HLexus IS225/40R18 88H (Front)255/40R18 95H (Rear)Toyota Sienna AWD (2011)P235/55R18 99HBMW X5 & X6255/55R18 109HSince the current Multicell tread compounds used on Blizzak winter / snow tires are not designed to support run-flat operation, the Blizzak LM-60 RFT uses a high silica content winter / snow tread compound molded into a directional tread design that features independent tread blocks with 3-D zigzag sipes to disperse water away from the tire's contact patch, further enhancing grip. The combination provides hydroplaning resistance and greater driving and braking force on snow-covered roads.Featuring Bridgestone's UNI-T Technology, the Blizzak LM-60 RFT's internal structure includes twin steel belts reinforced by spirally wound nylon to provide the desired high-speed durability and ride characteristics. The internal structure has been specifically tuned on a size by size basis for the vehicles listed above and features Bridgestone Side Support Run-Flat technology reinforced sidewalls to support the vehicle after a puncture causes a loss of air pressure.Blizzak LM-60 RFT winter / snow tires meet the industry's severe snow service requirements and are branded with the three-peak mountain snowflake (3PMSF) symbol.Install Bridgestone Blizzak LM-60 RFT tires in sets of four only.Due to the traction capabilities of the Blizzak, Bridgestone recommends using Blizzaks only in sets of four to provide the best handling characteristics and tire performance. Related Information: What is the three-peak mountain snowflake symbol (3PMSF)?