U-Haul doesn't list a specific size for the motorcycle trailer on the website's description. It does, however, mention in its trailer user guidelines that "Hitch-ball sizes of 1-7/8 and 2 inches ...

Commonly referred to as pull behinds, motorcycle trailers are lightweight and compact trailers that are designed to be towed by hitch-equipped motorcycles and smaller economy cars. Motorcycle trailers ...

To solve this problem, [Make It Extreme] built a custom single-wheel motorbike trailer barely wider than the motorcycle itself. The frame of the trailer is welded together from a couple of ...