The truvativ sram x9 gxp 22 10 speed 3926 chainset is designed to take you from steep endless climbs to hair raising technical descents the x9 is engeineered to deal with anything that comes your way with smooth precise shifting you can cover more ground faster and 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 available in black