Introducing the Shimano SLX 12-Speed MTB Cassette Sprocket, featuring BEAM SPIDER construction for weight reduction and extended gearing range. With HYPERGLIDE+ tooth profile and MICRO SPLINE freehub body, enjoy seamless shifting and enhanced performance on any trail. Lighter and stiffer construction boosts acceleration, while the aluminum spider arm and gears ensure durability. Choose the 10-51T option for optimal riding experience.