The Eagle™ chain has been completely re-engineered, and is produced with new manufacturing technology. All-new Eagle™ PowerLock® chain connector with FLOW LINK™ technology provides better chain-guiding and increased longevity. Unique features and design also provide significantly improved wear resistance on Eagle™ cassettes and rings Specificaiton Speed: 12. Chain length: 118 or 126 links. Chain connector: PowerLock. Inner link finish: Black Oxide. Outer link finish: Nickel.