pegdiver wrote:
Many miles of the bike on the ladder. Secret is to keep it from moving - tie it down in more than one spot.
I would agree with this...of course you do not want to overload the ladder either. But for a bike or tow on somethign that is made to hold 200lbs or more, I would think as long as you had them secured tightly to the ladder (both wheels) and have no movement, then it should suffice...The ladders are made to hold some weight...trailer bumpers generally are not (although some do)...
I would contact your rig manufacturer and ask them about it...of course they will probably go on the side of err and so no, no matter what.