Well I think it's fair to say I'll most likely transition from a Class III receiver to a completely unrated, untested, you'll die if you even use it, integrated receiver hitch- like you have.
"they" say that ideal tongue weight is 9-15% the total trailer weight. I think I will be in the 2200-2800 pound range depending on load and quantity of bikes. So while attractive, I think 100 pounds is going to be on the light side..
82 fj40, 99 uzj100, 06 gx470
97 DR650, 05 525EXC, 06 TW200, 89 TW200, 09 TTR125, 07 TTR90, 07 CRF50