With 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 Transmission - Flattop profile, unbelievable shifting performance, game-changing aesthetics - Electroless Nickel plating for optimal corrosion and wear resistance with PVD coating - Includes PowerLock connector - Fully approved for E-MTB use with solid pins.