From Graces Guide
Hayes-Pankhurst of St. Leonards-on-Sea
1913 Cayenne was a motorcycle produced in 1913. In 1913 two Cayenne machines were entered in the TT. They both had 499cc 3.5hp engines, but one failed to start and the other retired on the first lap. They had water-cooled engines with ohv and the rockers were set across the cylinder head to run from the push rods to the vertical valves, mounted in a detachable manifold. Twin exhausts faced the rear. The cylinder jacket was corrugated and a similarly formed radiator was mounted ahead of it. The forward magneto was driven by a silent chain.
Sources of Information
- 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
- The Encyclopedia of the Motorcycle by Peter Henshaw. Published 2007. ISBN 978 1 8401 3967 9