Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 146,984 pages of information and 232,838 images on early companies, their products and the people who designed and built them.
British Challenge Cycle Co of Challenge Works, Foleshill Road, Coventry.
Also see Challenge Cycle Co
c1868 Company formed
Firstly produced bicycles and carrier cycles before starting to manufacture motorcycles with either two-stroke or four-stroke engines.
1919-20 Produced the Coventry Challenge motorcycle
1949 Winding up order 
1949 J. R. Mead, chartered accountant of Coventry, was appointed liquidator of the company; on the same day he was also appointed liquidator of: