Reviving this ancient thread since I've never seen anything like this, and the OP last visited a year ago.
I have an older (2010) class b sprinter conversion (25 foot long) a Winnebago ERA 170,
View attachment 80845View attachment 80846 .
Pics of hitch and undercarriage with mount and spare tire.
I am concerned about hanging something heavy on the hitch. My 2 comos are only about 40lbs each w/o batteries, but this box is apparently 150 lbs. I won't be towing a car, that's what the bikes are for, but don't know how to tell if this is even safe at highway speed. Thoughts?