
BBB Cycling BottomThread BSA BBO-39 Bottom Bracket - BSA-68/73-24
BBB BottomThread BSA BBO-39 Bottom Bracket are fully CNC machined external cups. BBB Cycling BottomThread BSA BBO-39 Bottom Bracket features: Chrome steel 6805 bearings. Co-molded bearing shields. Wave washer spacers included. BSA threading: 1.37” x 24T. Fits 68/73 mm wide brackets. Fits 24 mm spindle cranksets. Cup tool: 16-notch 44mm OD (BTL-27L). Case width: 68mm ||| 73mm Material: 7075 T6 Aluminium











