With a symmetrical design, the Shimano Ultegra Bicycle Chain - 11 Speed offers smooth shifting and total durability. Boasting a unique outer plate design which prevents the chain from getting stuck, the inner plate has also been developed to provide better contact with the gears for efficient pedalling, increased rigidity and quiet running. Optimised for 11-speed Super Narrow HG-EV drivetrains, the chain also has PTFE plating for smoother running. - L.M. Features: Shimano Ultegra CN-6800 Bicycle Chain - 11 Speed Symmetrical design Outer plate design prevents the chain from getting stuck Inner plate is developed for efficient pedalling, increased rigidity and quiet running PTFE plating for smoother running Optimised for 11-speed Super Narrow HG-EV drivetrains Chain width: 5.62mm