What you guys are using is working for you so I'm not criticizing but.....
Hitch weights are typically rated for 12" overhang. Every inch longer
you hang in the receiver reduces the tongue weight rating of the hitch.
It's that pesky lever and fulcrum thing raising it's ugly head.
That bonneville is a neat bike and I sooooooo wanted one back in my
youth. Do try to keep all hitch type carriers as close to the back of
your rig as possible. I urge you to load and then follow your rig one
day in a car to watch how much bounce you get on rough roads, dips
RR tracks etc. Just be careful out there and by all means
Wish I could do this but our next rig is most likely an ultralite 5th wheel
and those guys don't have the frame to hang a 450 LB motorcycle on the