Add some glamour to your bike with KMC's Aurora green chain! Perfect shifting and dynamic propulsion with the X-bridge technology with this pro level 12 speed chain. The Non-Directional design allows maximum compatibility. The X-Bridge system on the outer plate is configured with precisely articulated angles for quicker and smoother gear shifting and quieter riding. Regarding the specific characteristics of Shimano SRAM and Campagnolo systems KMC developed a series meeting the highest demands. Precisely engineered their dynamically chamfered plate angle provides a perfect shifting performance and a smooth transmission. Features: Includes non-reusable 12x Missing Link Double X Bridge Durability Non-directional Compatible with all 12x drivetrains Pin length: 5 .2mm Weight: 268g 110 links