White Industries Fixed Cogs 16t 1/8″ Review Posted by Pelicandy November 3, 2018 in Drivetrain Components White Industries splined fixed gear cogs are made out of 8620 case hardened steel. The cog is designed to be used with a standard English 1.29 x 24 tpi threaded lock ring. Made in USA. Random Products SRAM PC 1091R HollowPin Chain Review Redline BB Set for 3-Piece Cranks 19mm Mid Review SRAM PC 7X Bike Chain – Single Speed Review Shimano Sora R3000 9-Speed 34/50t 165mm Crankset, ... Cycling Outdoor Recreation Parts & Components Sports & Outdoors White Industries