This past weekend , I had occasion to stop at a small unmanned scale that is usually always on. The scale is only big enough to get both trailer axles on at a time.
The trailer was loaded as per our normal camping gear which in terms of living necessities is fairly light compared to some I have seen
All holding tanks were empty.
The Concours was in garage as well as associated gear, camping chairs,and 2 bicycles.
Axle weight was right at 4800lbs per axle. Right side axles carried 200 lbs more than left side. Truck was carrying about 2300-2400 pin weight. Total weight of rig was 20100lbs. trailer added 500lbs to front axle weight of unladen truck.
After running about 75 miles on 2lane hwy at 60mph =/- I checked tire temp , and all trailer tires were =/- 120F. Rear duals on truck were same, front were 140 F. 80psi in trailer, 50psi in duals, 80psi in steer tires.
If I had a full fresh water tank, I would be sitting right about the 12000lb GVWR rating on trailer.
So in a nut shell, it would be very easy to overload this trailer.
It pulled well and I attained a reasonable 13.2 mpg over approx 160miles return trip.