The 9-speed cassette is lightweight and durable. The LINKGLIDE cassettes are exceptionally long-lasting and withstand daily wear and tear. They provide consistent shifting and pedaling performance for multi-purpose bikes and high-torque e-bikes. The LINKGLIDE cassette teeth feature a significantly thicker base and a unique chamfer that drastically improves wear resistance in high-torque applications. The LINKGLIDE sprockets have a computer-designed tooth configuration with contoured shifting ramps, resulting in crisp, smooth 2-way shifting (inward and outward) with reduced pedal kickback. The sprockets are cut and drilled to reduce weight without compromising stiffness.