Stunt Motorbike

I remember a small 2 wheeled motorbike about 2" long with a light gauge plastic front wheel and a heavy flat metal back wheel. The back wheel was geared and you could power it with a toothed pull-cord. Which would let the bike zoom off on its own. There was a jointed man seated on the top which you could arrange in all manner if stunt positions before he drove off. Anyone remember?