External bb is by far superior to square taper cranks. Stiffer and stronger. If your not a heavy rider then Isis or square taper are ok cheap square taper if not tightened do round pretty easily.
If its a newer frame facing shouldn't be to much of an issue
External bb is by far superior to square taper cranks. Stiffer and stronger. If your not a heavy rider then Isis or square taper are ok cheap square taper if not tightened do round pretty easily.
If its a newer frame facing shouldn't be to much of an issue