Produced by Bert Fruin of Hillingdon, Middlesex from 1957 to 1963.
Having already been a keen supporter of 125cc road racing during the 1950s, towards the end of the decade Bert Fruin became interested in the new 50cc racing class. He then went into limited production of machines for that class, plus a similar one for sports road use.
Both machines used Demm engines from Italy, and tubular frames with conventional suspension. The motorcycles were sold as the Dart. Fruin rode one of his machines in the early 50cc TT races. Later he built a 125cc twin and was a regular contender in UK events, as well as four TT races.
In 1961 he built two 200cc four-cylinder racer kits which were supplied as crankcases with blueprints for the crankshaft. One is believed to have been built with four Demm top-ends, and the other used NSU Quickly components.
Sources: Graces Guide; classic50racingclub.co.uk.
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