Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 138,218 pages of information and 223,604 images on early companies, their products and the people who designed and built them.
Gyroscopic was a 'one-off' motorcycle produced in 1912.
This machine had a rotary engine, a form commonly used in aviation, and shaft drive. A heavy-duty bicycle frame with simple forks was adapted to carry the mechanics.
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