After a lot more puzzling and searching, I think I am able to answer my own questions: BC1.37 x 24 is just the specification of the thread, and most 68mm bottom brackets conform to that.
So I should be looking for a 103mm spindle width bottom bracket, and it seems simple enough.
After a lot more puzzling and searching, I think I am able to answer my own questions: BC1.37 x 24 is just the specification of the thread, and most 68mm bottom brackets conform to that.
So I should be looking for a 103mm spindle width bottom bracket, and it seems simple enough.