The basis of every Eagle drivetrain is its chain-and the Eagle S100 chain is designed and manufactured using proven Eagle architecture so it is fully compatible with every other component in the Eagle ecosystem. Featuring solid pin construction a sturdy Eagle PowerLock and smooth efficient shifting that you can count on every time out.Eagle 12-Speed Drivetrain Ecosystem compatibilityDurable chrome-hardened solid pin constructionEagle PowerLock connector TECH SPECS Links 126 Drivetrain Speeds 12 Chain Connection Type Single Use Master Link Color Silver/Gray Half Link Chain No Defined Color Gray