Sram: start with eagle the GX eagle chain is designed with sram's eagle geometry, the GX eagle chain features solid pin construction, eagle powerlock and smooth, efficient shifting that you can count on every time out.Featuresgroundbreaking new chain design and technologythe 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 longevityunique features and design also provide significantly improved wear resistance on eagle cassettes and rings specificationscompat - speed (cn): 12s-eaglechain length (links): 126 linkscolor - outer link: silvercolor - inner link: blackchain connector: powerlockinner link finish: black oxideouter link finish: nickelpin variant: solid pinpin treatment: chrome hardened