Black Ops BMX Chain Tensioner, Black Review Posted by Pelicandy October 20, 2018 in Drivetrain Components Forged alloy construction Double bolt centering design Oversize 6mm hex bolts Black Ops BMX Chain Tensioner in two different axle sizes Random Products USA Made 104mm BCD SharkTooth Pro INTEGRATED Mount... Schwalbe 4 x SCHWALBE SV7 20″ 1.5-2.5 BMX Bi... YBN YABAN 12-Speed Mountain Bike Chain Designed fo... RaceFace Race Chainring, 104mm, 36T, Silver Review Black Ops Cycling Outdoor Recreation Parts & Components Sports & Outdoors