Schwalbe Rocket Ron bicycle tire. Features good rolling properties and extreme quietness. The ADDIX SPEEDGRIP compound is a universal blend with the widest range of use, perfect for XC, AM, and Trail riding. The "Super Ground" construction, an improved version of the SnakeSkin construction, features a lightweight and flexible fabric layer that makes the tire cut-resistant on the sidewalls and under the tread. It offers low weight with good puncture protection and a wide range of applications, from XC to All Mountain.