Our wide-range All-Road Cassette designed to work with State Bicycle and SRAM drive-trains. [FEATURES] TOOTH COUNT: 11 – 13 – 15 – 17 – 19 – 21 – 24 – 28 -32 -36 -40 - 46 T MATERIAL: Steel w/ Nickel Silver Chrome treated surface Weight: 586 grams Compatibility : 12 speed / HG Driver Risk-Free Purchase - State Bicycle Co. offers FREE EXCHANGES* -If this item doesn't work out, we'll send you a return label and exchange for free!