BRT-040 Expander – Expander shaft for use with the split BB bearing pullers and the BRT-040 toolkit – This expander is designed to be used in conjunction with the BRT-040 24 nad BRT-040 29/30 split pullers to press 24, 25, 29 and 30mm ID bearing out of bottom brackets. This part is directly compatible with BRT-003, and when combined with BRT-040 24 and BRT-040 24mm Cup will expand the functionality of BRT-002 to cover 24mm Shimano BBs as well.