The SRAM XG1175 XD Driver 11-Speed Cassette 10-42T Black is engineered for performance and durability, featuring Full Pin technology that combines ten lightweight stamped steel cogs with a robust 42T aluminum cog. Weighing just 337g, this cassette offers a super wide gear range, making it ideal for various terrains and riding styles. Its open design not only facilitates mud clearance but also promotes cleaner shifting and longer component life. With optimized gear steps, the XG1175 ensures smooth transitions, enhancing your overall cycling experience.