Originally Posted by
Duragrouch
I'm surprised that the Launch still comes with a square taper bottom bracket spindle. Even cheap bikes like the Zizzo come with hollow-spindle. I've installed a hollow spindle 2X crank on my mid-'00s Dahon speed without facing the BB shell, seems to work fine; I can see your point, but there is sufficient threads on the external bearings to override any face mismatch I think, and they seem to fit flush against the faces, and there is no binding of the hollow spindle.
On my dahon bike that originally came with square taper, the bb shell faces had dried blobs of paint on them that prevented the outboard bearing cups from seating flush against the shell. So it had to be shaved.