One Chain for All｜100% Compatibility On All Leading Derailleur Systems Asymmetrical Chamfering Avoids Interference Added Chamfering for Smooth Operation Impeccable Precision｜Phenomenal Shifting Performance Size 1/2"x11/128" 126 links | Compatibility : SHIMANO, SRAM and all other 12 speed drivetrains | 1x12, 2x12
