I could imagine running them through the wheels. It would seem like the straps would rub some nice lines in the wheels. We went from the frame rails on the trucks that we hauled from Amarillo to Austin, about a 1200 mile trip in all.
i go threw the wheels..and i use the wood insted of laying it out on the trailer so when i get there my ball koints are still one peice...roads are to rought everywhere..and dont want to tow with it aired up...less stress in me knowing its not boucing around on the trailer