Sram pg1070 10 speed road cassette improve your shifting with a sram cassette the sram pg 1070 cassette uses varying tooth profiling to provide consistently smooth shifting as well as an alloy carrier to keep the weight down sram pg1070 cassette 10sp features powerglide tooth profiling designed for optimal shifting performance varying tooth profiles comes with lockring lightweight construction 220g 11 23t alloy carrier compatibility sram or shimano 10 speed chain available in 11 to 23