Enduro Bearings Master cup that receives all sizes of the BRT-040 receiver cups

BRT-040 Master Cup – Master cup that receives all sizes of the BRT-040 receiver cups. The ACME bearing press nuts from BRT-060 and BRT-050 bearing presses, as well as the PT-011 Zipnut, snap securely into the top of the cup. When combined with a press nut, this part is directly compatibe with the the other parts of the current BRT-002 30mm BB tool.