The SunRace CSMZ901 12-speed cassette (11-51T) offers a wide gear ratio for optimal shifting performance across various terrains. The A7075 51T sprocket, alloy spiders, lockring, and spacers ensure durability and lightweight design. Weighing only 587g, this cassette provides reliable performance for MTB riders in South Africa. Available in ED Black, Metallic Silver, or Silver & Black Ano, it’s a perfect upgrade for your drivetrain.