As far as I understand it, the TA Pro-5 Vis crankarms have a proprietary taper matched perfectly with the proper TA spindle. However, it’s been reported that many various bb spindles play well with it, particularly early Stronglight, and Campagnolo.

In this case I’ll be using a complete TA bb assembly when transplanting the crankset to another frame. As for the Lambert bb, it’ll stay with the Lambert, as whoever buys it when put it up for sale soon, might appreciate having it as part of the original frameset. And I’d imagine that it would accept a variety of cranksets besides the Pro-5 Vis.