Originally Posted by
yamatd3
No, the frame rail that runs from right to left, you drill up from the bottom. You then place the bolt through the Pro Beam, through the frame beam, then you use a washer and nut on the top of the frame beam. It looks like a very secure unit, much stiffer than the kappasphere.
Are you qualified to say that it is much stiffer than ours or is that just your opinion???