Brand-X 12 Speed MTB CassettePerfectly suited for the rigours of modern mountain bike (MTB) riding, this 12 speed cassette is equipped with high tensile steel cogs on a 7075 alloy spider for maximum strength and durability. Brand-X has also kitted out this trail-ready model with a standard Shimano HG spline and a tooth profile that has also been optimised to aid gear changes and reduce noise. Available in both 11-50t and 11-52t options depending on your ratio requirement, this is a great choice of upgrade for replacing your old 12 speed MTB cassette and benefitting from smooth and consistent performance.The 11-50 cassette option is fully compatible with SRAM and Shimano, while the 11-52t cassette option is compatible with SRAM drivetrains.Features: Material: High Tensile Steel cogs on a 7075 Alloy Spider Use: Mountain bike (MTB) Ratio: 50T Option: 11-13-15-17-19-21-24-28-32-36-42-50; 52T Option: 11-13-15-18-21-24-28-32-36-40-46-52 Freehub Compatibility: Shimano HG freehubs Chain Compatibility: 12 Speed chainsBuy Brand-X Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.