Origin8 Track Cog Review Posted on July 1, 2018November 9, 2018 By ArchSeaLionPosted in Drivetrain ComponentsTagged Cycling, Origin8, Outdoor Recreation, Parts & Components, Sports & Outdoors Threaded, hardened chromoly design ULTRA strong design Coated to withstand rusting 1.37″ x 24 tpi Origin8 Track Cog in multiple size variations