Sram xx1 xg 1199 11 speed mtb cassettethe future has landed taking on the form of 1x 11 gearing sram are ahead of the game with the sram xx1 cassette being the first of its kind 11 speed is now a reality ranging from 10 to 42 teeth the 11 speed x dome delivers an incredibly wide gear range while maintaining even optimised steps the single unit cassette combines with the xd driver body for a superior connection to the wheel sram xx1 xg1199 11 speed mtb cassette featuresx dome x dome te