If the crank taper is trashed completely it will ride up the taper if the bolt is tightened until it touches the BB which will stop the crank turning properly. Crank taper has to be pretty much wrecked for that to happen and will. Usually look rounded to the eye.
If the crank taper is trashed completely it will ride up the taper if the bolt is tightened until it touches the BB which will stop the crank turning properly. Crank taper has to be pretty much wrecked for that to happen and will. Usually look rounded to the eye.