Sram x9 10sp trigger shifterfrom steep endless climbs to hair raising technical descents x9 is engineered to handle whatever comes your way smooth precise shifting helps you cover more ground faster the lightweight stiff and always reliable crankset lets you maintain your momentum through the rough stuff whether youre sprinting for the finish or tackling an all day epic your best ride starts with x9 featuresnew smaller designpull lever ball bearing technology used in xx and x0 shifter