Designed for the most discerning, performance obsessed riders, SRAM's GX 2x11 Rear Grip Shifter features weight-saving construction and delivers outstanding speed and precision. SRAM's X-Actuation gives you precise and dependable 11-speed performance. This right-side rear shifter is compatible with SRAM's GX 11-speed derailleurs and cassettes. - Full metal, 11-speed indexing keeps shifting crisp and precise with Grip Shift - 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 - Once the Grip Shift shifter and grip interlock securely, forged aluminum clamps on either end reinforce the assembly by locking tightly to handlebar - Weight: 144 grams