I feel a need for a single wheel (bob yak type) trailer*. But I don't feel the need to pay the prices that these or the cheaper copies have attached to them.
So I'm thinking about a home build.
The trailer itself is no problem - it's just an old fork, mounted horizontally with a small wheel and some cross struts to brace a deck.
The problem comes with the hitch and the pivot(s).
A ball join pivot could see the trailer falling over sideways when not loaded. But would a single plain pivot work when cornering? Could I built the trailer as two horizontally positioned forks, such that the tops of their steerers were joined with a hinge, with one fork going back to the trailer wheel and the other going forwards to the bikes back wheel dropouts (obviously might need the legs opening out a bit or an extension mount built).
An alternative would be to have the mount on the back of the rack. I'm thinking that this ought to get away with a uni pivot and weight at the front of the trailer bed ought to stop the trailer from flipping sideways?
Or should I just buy a dirt cheap second hand tag-a-long and build Xtraycle like mounts on to the sides?
All thoughts appreciated.
*I have a two wheeler but it's a pain to get down the alley by side of my house, given its width (anyone want to swap a two wheel cargo/dog trailer for a single wheeler?).