Originally Posted by Ford Idaho
I will look hard at the bumper and recalculate if need be.
IMO if the bumper can not support <120lb it needs to be scraped.
I know everyone's experiences are different (and it was a whole different camper)- but I had a buddy who was real proud of his clamp-on bike rack. 2 trips later, I got a text from his wife who said someone flagged them down because something was throwing sparks up from the back of their camper. Turns out it was their bikes + spare tire.
The weight of everything and leverage/distance from the bumper itself caused the bumper to twist and break.
I think many new units are coming with stickers on the bumpers saying essentially, "if you attach anything to the bumper, your warranty is void".
Your results may vary, of course.