Debenham Sisters
Betty and Nancy Debenham, with their dog, Poncho, were keen motorcyclists. Nancy won a Gold Medal at Brooklands in 1926.
The Debenham Sisters
Henk Cloosterman has spent 25 years studying the desmo valve system, and five of those years writing a book on the subject with co-author Francisco Tijsse Klasen.
Website: desmodromology.nl
