Tralette
The Tralette Division of the Peninsular Metal Products Co. in Detroit Michigan built a single wheel and a two wheel version of these trailers. The two wheeled version was built for the back end of a motorcycle, while the single wheel was built for a car. On the single wheel version, they engineered a way around one of the key elements that make these trailers so functional, the swivel wheel. While they still only have one wheel, the wheel isn’t a caster wheel. In other words the wheel doesn’t turn the trailer, a complex system incorporated into the hitch makes this assembly very different from the others.