I'm in the process of building a bicycle cart to carry my canoe or my kayak.
One of the key issues was the ability to be taken apart and stored in my truck or the camper depending on the trip.
I'm off to a good start.
I used the wheel assemblies from my old boat dolly. You can see it's laid out like my drawing.
This is how I did the wheel assembly before. A 11/2" tee cut down to fit and to reduce possible drag in rough terrain.
This is how I've got it assembled so far. 7/1/12 I added another foot for a even 4 foot long so 3" will hang off the rear of my Old Town.
This is a view showing the 3/4 EMT pipe that stays. The half inch pipe that is pinned in will be able to go to the canoe or a short one that will allow me to just use the trailer for shopping and other situations.
I did manage to get it hooked to my bicycle and peddle around the yard today before the storms hit here. I'll do some more images soon.