With Supersonic you're in on the ultimate speed experience. Whether in races, time trials or marathons, the Supersonic product line for racing bikes and MTB gives you extra thrust. Every Supersonic product is uncompromisingly optimized as far as weight and rolling resistance are concerned. All components of the Supersonic tire and tube were individually reduced in volume and weight to what is absolutely necessary and technically feasible. This affects, for example, the thickness of the tire casing topping, material distribution of tread rubber, the thickness of the tread compound and the thickness of the tube walls. Of course, only highest-quality materials are used highly refined polyamide for the carcasses, the famous ASC activated silica compound technology or the tried-and-tested Endless Edge tread pattern design. Radically optimizing a tire in terms of weight and rolling resistance means, of course, cutting back on other tire properties. In terms of mileage and puncture resistance, the Supersonic tires do not measure up to the proven quality of their corresponding all-around tires. Our engineers and chemists have turned out superlative technology here, ensuring Supersonic products a top position in racing and tuning. Hobby athletes can also benefit from our innovative capabilities, however, through Continentals various well-balanced alternatives that satisfy virtually the whole range of racing-tire demands. The ultimate ultra light butyl tube Removable valve core Threaded Valve stem Weight 50g Manufacturer Claimed Available in long and short valves.