Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 130,446 pages of information and 207,436 images on early companies, their products and the people who designed and built them.
They produced a range of singles and V-twins using JAP engines in their existing frames. To begin with the machines had two-speeds and belt drive, but by 1914 there were only V-twin engines, but with three speeds and all-chain drive.
Thus they continued until 1916, but were not revived after the war.
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