Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 138,258 pages of information and 223,668 images on early companies, their products and the people who designed and built them.
Tonkin was a motorcycle produced in 2003, by Steve Tonkin.
The concept was to build a road machine based on a racing one. This particular machine took a Matchless G50 engine, five-speed BSA-type Gold Star gearbox, belt primary drive and dry clutch and fit them all into a Titchmarsh Mk III Seeley replica frame with Ceriani front forks, drum brake and conical rear hub. The result was called the Typhoon and had the finest of detail fittings, similar in style and line to the Seeley Condor.
The British Motorcycle Directory - Over 1,100 Marques from 1888 - by Roy Bacon and Ken Hallworth. Pub: The Crowood Press 2004 ISBN 1 86126 674 X