Sram x01 11 speed grip shift shifter the story with x01 grip shift is similar the so called speed metal indexing and ball bearing design carrying over from xx1 like the x01 trigger the x01 grip shift uses aluminium in place of carbon for part of the lever body features jaws once the grip shift shifter and grip interlock securely forged aluminium clamps on either end reinforce the assembly by locking tightly to handlebar rolling thunder three rows of ball bearings provide zero friction