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
05 525EXC, 01 XT225, 09 TTR125, 07 TTR90, 07 CRF50