The Shimano Deore CS-M4100 10-Speed 11-46T MTB Cassette uses Hyperglide technology that incorporates specially positioned shift ramps and tooth profiles for improved chain control during shifting. Close ratio gearing allows more efficient use of energy through finer cadence control. The 3 largest sprockets are mounted on a lightweight alloy carrier to reduce weight and increase rigidity. Key Features: - 11-46T - 11-13-15-18-21-24-28-32-37-46T - Steel Cogs - Nickel Plated - Alloy Carrier for top 3 Cogs - HG-X 10-Speed Chain Compatible - All Mountain, City & Touring Use - 454g weight