Sram: Specifically engineered to optimize Eagle Transmission, the XX SL Eagle Transmission Flattop Chain features a unique flat top. Not only does this shape maximize shifting performance and robustness, but it also contemporizes the look of your super bike, especially with its outer plate cut outs that push the strength-to-weight ratio to an unprecedented level.FEATURESFlattop specifically engineered for Eagle Transmission.Ultimate shifting performance, game-changing aesthetics.Super-light outer plates with cut-out design. (Not suitable for E-MTB)  SPECIFICATIONSCompat - Speed (CN): 12s T-TypeChain length (links): 126 linksColor - Outer link: SilverColor - Inner link: SilverChain connector: PowerLock 12s T-Type BLK PVDInner link finish: Chrome HardenedOuter link finish: NickelPin variant: Hollow PinPin treatment: Chrome Hardened