Fewer sprockets also mean less weight and a wider chain for better mud shedding - it even fits on standard 10-speed freehub bodies so you dont need to buy new wheels for no reason. In short, its everything you want in a high-end drivetrain. (Also compatible with Sword 1 x 10 groupset)FeaturesCompatible with standard HG cassette hub bodiesContinuously molded sprockets achieve a high standard of durability and straightnessSpider carrier reduces wear on aluminium cassette hub bodiesSpecificationsGroup: ADVENT X, SwordSpeed: 10 SpeedRange: 11-48TSurface Finish: 2 layered ED BlackCombination:11-13-15-18-21-24-28-34-40-48Spider: YesCog Material: Steel, AluminimumHub Compatibility: Standard HG FreehubWeight: 424g