Sunrace mx8 11 speed shimano sram cassettethis 11 speed cassette is the perfect solution for riders that dont want to resort to an expensive expander sprocket and those who want an even and smooth shift between all sprockets features6 sprockets on 2 alloy spider carriers11 speedalloy lockring and spacersweight 401g 11 42 buysunrace componentsfrom chain reaction cycles the worlds largest online bike store