The ContiSportContact 5P SSR (Self Supporting Runflat) is Continental Tire's Max Performance Summer run-flat tire designed to provide temporary extended mobility in case of complete air loss due to a puncture. Tires in sizes used for staggered fitments are optimized to meet the specific performance requirements of front or rear axle positions.* The ContiSportContact 5P SSR is designed to deliver steering precision, cornering stability and short stopping distances in 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.ContiSportContact 5P SSR tires permit drivers to remain mobile in the event of a flat tire by allowing them to reach their destination or tire service facility without having to replace a flat tire with the spare tire. The ContiSportContact 5P SSR's reinforced sidewall enables the car to continue on its way at a maximum speed of 50 mph (80 km/h) for up to 50 miles (80 km), depending on road conditions and vehicle weight.The ContiSportContact 5P SSR benefits from a tread compound with Continental's Black Chilli Technology that features an innovative type of racing-grade carbon black to ensure a speedy warm-up along with special grip resins that optimize traction on wet and dry roads. These new carbon blacks and resins blend the rubber's flexibility (important for traction) with the tread's rigidity (important for handling). This compound is molded into an asymmetric tread design featuring a continuous center rib (or multiple ribs in wider sizes, especially those tuned for rear axle only applications) flanked by a large number of small, interlocked tread blocks. Circumferential grooves help water flow through the footprint to resist hydroplaning while the transverse block edges divert water away from the tread blocks to improve wet traction.The tire's internal structure features a rolling resistance-optimized cap and base tread ("cap" on the outside with the "base" underneath), along with twin steel belts reinforced with spirally wrapped polyamide (a mixture of heat-resistant synthetic aramid fiber and nylon threads) that enhances the ride quality while tuning the contact area's vertical flexibility and lateral rigidity. Reinforced self-supporting sidewalls prevent the inside of the tire from getting pinched between the road and the rim in the event of a loss of inflation.*Because ContiSportContact 5P SSR tires are tuned for specific axle applications, each size is identified as "Front/Both Axles" or "Rear Axle Only" in Sizes, as well as in tire Specs. Though they cannot be labeled as run-flat tires, tires branded with MOExtended or MOE on their sidewalls offer run-flat-like characteristics by delivering limited temporary extended mobility after a puncture results in complete loss of air pressure. Because MOExtended or MOE tires do not have the same speed and distance endurance of conventional run-flat tires, they should not be substituted in any situation where a conventional run-flat tire is required. To confirm what your vehicle needs, check our Original Equipment tire listing for your year, make and model or see your vehicle owner's manual. Related Information: Learn more about MOExtended/MOE tires here.