The sram xx1 was built with a dedicated 1x design philosophy mdash making it simpler lighter and more durable than any other no matter where you ride no matter what yoursquore up against sram xx1 the sram xx1 grip shift features sram 1x11 x actuation for precise and dependable 11 speed performance speed metal shift indexing rolling thunder ball bearing technology jaws lock on grip technology a carbon cover and lock on grip