Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 138,143 pages of information and 223,038 images on early companies, their products and the people who designed and built them.
Colcham were motorcycles produced from 1962 to 1972 as the result of a partnership between John Collins and Alan Chambers.
The pair built grass-track and a few speedway machines. They would fit any engine specified by the customer. For his own racing John Collins used Velocette units. They made their own front-fork dampers and fuel tanks, but most of the other part were bought-in.
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