catena sram nx eagle 12vThe foundation of every Eagle drivetrain is its chain, and the NX Eagle chain is designed and manufactured using SRAM's authentic Eagle architecture, making it fully compatible with every other component in the Eagle ecosystem. The NX Eagle chain features a solid pin structure, Eagle PowerLock, and smooth, efficient shifting you can rely on every ride. Features The Eagle PowerLock chain connector with FLOW LINK technology offers better chain guidance