Originally Posted by GDBurk
I got a 4 bolt 2" trailer hitch from Curt ($50)and put it on the back 4x4 tube of my 5th wheel. Then I got a 3 bike holder from Canadian Tire (regular $150 for $45 on a clearance sale). The carrier bolts onto the hitch. I haven't put the bikes on yet but I hope they won't bounce around too much. The whole system looks pretty skookum.
Probably not a good idea, as the 4" bumpers are not made to carry much of a load and when you cantilever a rack with bikes on it, it will likely twist and break off soon.