The Super Record 12-Speed chain is slim, robust, smooth and precise. It&';s been redesigned to work with all 12-speed compatible components, featuring the Ultra-link system to increase durability and safety *Chain width is 5.15mm *Special treatment added to enhance extreme smoothness and precision shifting performance *Pins aligned to the outer surface for smooth and precise shifting *Optimized design to work seamlessly with 12-speed chainring tooth profiles