For no reason at all, I've just been comparing the specs of the BB234 with the TRBX174, which is quite different to the rest of the TRBX range (which is all ice lolly stick necks and humbuckers)
Both have ceramic PJ pickups, both have 40mm nuts, both have 4 bolt necks (the 6 bolt for the BB starts with the 434)
The TRBX174 neck is very slightly *thicker* than the BB234, and the much smaller TRBX174 body is mahogany, whereas the BB234 is alder.