SMALL SIZE 43mm OPC BOTTOM BRACKET SET KIDS BMX TYPE BIKES WITH ONE PIECE CRANK

43mm BOTTOM BRACKET SHELL. THESE WILL NOT FIT A STANDARD SIZE BMX BOTTOM BRACKET WHICH HAS THE 51mm BOTTOM BRACKET SHELL. COMPLETE SET OF BOTTOM BRACKET SET COMPONENTS FOR THE SMALLER SIZE ONE PIECE CRANK AND BOTTOM BRACKET SHELL.