It was constructed from a steel angle frame, with a wooden bodywork and plastic screen.
It was designed to pivot against the bicycle frame so the cornering and riding were less affected by the addition of the car.
The design was reminiscent of sidecars which were commercially available in the 1940's.
The sidecar was fitted with a harness to help the passenger stay safely in place.
A guard was also fitted to the side of the bicycle rear wheel to stop potential accidents between the child and the spokes.
Please note that being in the UK I mounted the sidecar on the left. If you cycle in a country where they drive on the other side of the road, you should consider switching the sidecar to the other side.
Step 1: Making the Frame
The frame parts were clamped in place using some wooden off-cuts and cable ties, then welded together.
Step 2: Adding the Wheel
The wheel mount was positioned midway along the frame edge and welded in place.
The outer frame was a piece of 25mm steel strip bent in the vice. This was bolted to the main frame to allow the wheel to be removed more easily.
Once the outer frame was bolted in place, the outer wheel mount was clamped and welded to complete the wheel fixing.