I made the first run of my wood trailer today. I just got the "floor", a cattle panel put in it yesterday. I had some mowing to do at my office so I hauled my mower on it with my fixed gear bicycle. Yesterday I pulled the trailer up the road a bit with a 130 pound load and it pulled fine but twisted my trailer hitch that had worked successfully with my small trailer.
I welded on two 7/32" steel rods to reinforce it. Note, the bike and trailer are not lined up in this photo.
My motorcycle hitch is much more robust.
The time over 5.5 miles was 25 minutes. Usual without the trailer is 20 minutes.
With the trailer hooked to the motorcycle it is going to be flipped over, lowering it 2"