This,Adel clamps around the roll bar tubes, then bolt to those. Should be sturdy enough and the rubber inserts in the clamps should keep it from slipping if they are the right size. Cheap and easy and it will work.
Just a thought.I want to install my amp rack basically a pice of wood across my roll bar legs as you see in the picture. How can I secure it on the bars without drilling holes ? Of course I can't drill holes in the bar so please I am open to ideas.
Thanks