A Brief History of the Marque
Manufactured: 1923
In 1923, the mechanical engineer Cavicchioli built an engine of 349cc with a bore/stroke of 86 mm x 72 mm using a cast iron piston, and a second piston with a smaller diameter (35 mm) in the cylinder head, which had two spark plugs.
A similar design was used by Dunelt, and the Beare Sixstroke also employed a design which somewhat fitted this description.
Sources: MC Storico Conti, et al.
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