This sidecar was built to transport my 3 year old son on the local cycle paths.
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 was made from 25mm steel angle 3mm thick. The angle was cut to the dimensions shown in the CAD sketch.
The frame parts were clamped in place using some wooden off-cuts and cable ties, then welded together.