I already added a rail mount up front for Gavin's bike. seems like with that, and a second propane, I keep adding tongue weight. I could see shifting the small bike to the back, then the big bike up front, but still feel I have more tongue weight than anything.
I've also got a receiver tray that could be used to move some concrete around, for testing purposes..
82 fj40, 99 uzj100, 06 gx470
97 DR650, 05 525EXC, 06 TW200, 89 TW200, 09 TTR125, 07 TTR90, 07 CRF50