Three decades ago, SRAM was founded on a product called Grip Shift and an idea that shifting a bike should be easier, better and more intuitive.It´s more advanced than the original, but the all-new XX1 Eagle™ Grip Shift follows in the same tradition of making shifting easier, better and more intuitive.The new XX1 Eagle™ Grip Shift system includes new, robust internals that make it more durable and its´ shifting performance more precise.But just like the original, it is total control in the palm of your hand.Features:- New Grip Shift mechanism takes SRAM´s original invention to an increased level of precision and durability.- Better feel and added toughness - Lightweight carbon cover Specifications:- Speeds:12-speed rear - Compatibility:Eagle™ 12-speed rear derailleurs - Recommended Group:XX1 Eagle™ - Technology Highlight(s):JAWS™, ROLLING THUNDER™, SPEED METAL™, X-ACTUATION™ - Material:Carbon fiber - Hardware:Clamp Included Technology:JAWS™:- Once the Grip Shift shifter and grip interlock securely, forged aluminum clamps on either end reinforce the assembly by locking tightly to handlebar.ROLLING THUNDER™:- Three rows of ball bearings provide zero friction or play—reducing the force needed to shift and promoting long-term performance under all weather conditions with Grip Shift.SPEED METAL™:- Full metal indexing keeps shifting crisp and precise with Grip Shift.X-ACTUATION™:- Developed specifically for SRAM 1x™, X-ACTUATION™ keeps shifting sharp and consistent across the entire cassette.