My recent installation of a TA triple required a 127.5 mm UN54 BB.
BTW, in reference to cyclotoine's comments, I have ridden on the same TA crank for 30 years now. I am neither heavy nor powerful, but I did race cyclocross on it for a couple of seasons, and I have not been particularly kind to it. It has not failed me yet, and that is about as much as you can ask of a crank.