The XX1 Grip Shifter represents SRAM's typically innovative take on the grip shifters of our youth. With a fashionably lightweight carbon fiber body and the precision shifting of SRAM's X Actuation ratio, it's worlds removed from the toy grip shifters that we tore apart on our first non BMX bikes. The XX1 Grip Shifter boasts enduro ready, one by technology that's built for the adult world of racing. The internals have also matured, replacing our childhood ideal of nylon bushings and plastic internals with three sets of stainless steel ball bearings and the rock and roll action of SRAM's Speed Metal alloy indexing. The Jaws lock on grips maintain a secure hold on the shifting mechanism with corresponding teeth that are themselves locked into place with aluminum clamps.