SunRace MZ6 12 Speed MTB Cassette, Silver/Black, HG Spline, 11 51T

Wide-Ratio 12-Speed Cassette (11-51T) – Offers a broad gear range suitable for gravel, e-bike, and MTB applications. The 11-51T spread provides excellent climbing capability and smooth cadence control on varied terrain Steel Spider & Alloy Lockring – Sprockets are mounted on robust steel spiders for added stiffness, while the alloy lockring ensures secure installation and consistent performance under load Advanced Material Composition – Features A7075 aluminium for the largest sprockets (39T, 45T, 51T) and high-tensile steel for the remaining sprockets, combining lightweight performance with long-term durability Lightweight Design – Despite its rugged build, the cassette maintains a competitive weight, making it suitable for performance-focused riders who demand durability without excess mass Shimano HG-Spline Compatibility – Designed to fit standard Shimano HG freehub bodies, for use with 12-speed drivetrains