I've just finished a sidecar frame for my 1912 Harley-Davidson replica. I used a pair of unicrown forks for the outrigger wheel, as well. It's kool to see somebody else had that idea, too!! Has anyone thought of making a bicycle/sidecar where the bike could be controlled by the sidecar? You would sit in the sidecar, and pedal, steer, and brake via linkage to the bicycle. I got plans already a-brewin'!! Great job on your sidecar, it's kool to see that they haven't gone out of style!!!