Just built a trailer:











I used quick disconnect ball joints from midwest control products for the hitch. QI250s. The dropouts are galvanized steel "mending brackets" from home depot. The hitch design is patterned after the bikes at work trailer hitch. I made hitches for two bikes. The upper one uses pipe clamps, the lower one uses U bolts. The trailer frame is all 2x4s, though I probably could have used something lighter. I need to paint it. The wheels are oddball 28 inch (635mm) 700B westwood roadster wheels.

The trailer will sometimes have a box sitting on those ropes. The goal is to get the center of gravity really low. Looking forward to trying it out with some real loads!