Two stroke multi-cylinder sidecar track racers

In the seventies and eighties two stroke multi-cylinders were common in sidecar track racing. In Germany they used König and homemade Yamaha triples as first made by Rudi Kurth. Later Suzuki GT750 and Yamaha TZ500 and 750 were used. in 1980 multi-cylinders were banned. 

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Two stroke track sidecars

Vid of a König sidecar

König start up