The Super Record X cassette from Campagnolo is a highly developed 13-speed cassette specifically designed for use on racing bikes. With a range of 9 to 42 teeth, it offers a wide variety of gear ratios suitable for both flat and hilly terrains. The smallest sprocket size of 9 teeth allows for high speeds, while the largest sprocket with 42 teeth provides excellent support for climbing. The cassette is made from high-quality metal, ensuring its durability and resilience under various conditions. The silver color gives the cassette an elegant and modern appearance that seamlessly integrates into the design of a racing bike. The Super Record X cassette is an ideal choice for demanding cyclists who value performance and precision.