SRAM X0 Eagle T-Type Flattop Chain - 12-Speed 126 Links Solid Pin Includes PowerLock Connector PVD Coated Dark PolarWith Eagle Transmission being the first of its kind fully integrated and interdependent system the X0 Eagle Transmission (T Type) Flattop Chain is so much more than just a chain. Its unique flat top design makes it the strongest chain SRAM has ever made. It features a Dark Polar finish specific to X0 has been plated with electroless nickel and comes with a PVD coating for unbelievable resistance to corrosion and wear. Specifically engineered for Eagle