Origin8 Single Speed Crankset, Black Review Posted by GiantPandaisy May 26, 2018 in Drivetrain Components Forged AL6061-T6 crankarms Stamped alloy 1/8″ chainring 44mm chainline Does not include BB Model Number Features: Forged AL6061-T6 crankarms Stamped alloy 1/8″ chainring 44mm chainline Does not include BB Origin8