el condor wrote:
you get one of these
pressed in, and now you have a regular English threaded BB.
Hi bikerjulio, thank´s, yes I have one of those, but it may only work for external bearings, if I were to run a square taper crank I could mount a square taper compatible bb into the adapter shell but it would not hold itself against the frames bb shell (just at the adapter) which-even when using Loctite for the adapter wouldn´t be strong enough to hold itself in the frame.
Not sure how the use of a square taper bearing would be any different from a threaded external bearing used with this adapter. The Shimano bearings certainly do not hold on to anything BUT the sleeve. The sleeve is in turn mounted using Loctite for cylindrical applications and sits extremely well in the frame. I used one of these sleeves in combination with BSA68 external Shimano bearings and there was no visible movement nor any creaking what so ever.
Does a square taper BB-bearing exert extremely much more force on the BB than an external bearing? As stated, it doesn't attach to the frame itself/the bb itself, only to the sleeve in turn fastened with Loctite for cylindrical applications.