No idea of this particular trailer but in general, those bumpers are not intended to carry much more than a spare tire. If you add a carrier, Iíd carry bulky things, not heavy things. Remember that weight added to the rear will pull some off the hitch. To little hitch weight makes for very unstable driving.
2006 Gulf Stream Friendship G7
350 Cat, Crusier Lift w/ Honda VTX
Blue Ox and 2019 Chevy Blazer RS AWD V6