From the other side you can better see the layout of the engine:
William Comery, Raleigh’s chief engineer and Works manager, developed a luxury machine that had many novel features.
It had a longitudinally placed flat twin side valve engine with outside flywheel, fully enclosed all-chain transmission, Brampton Biflex front forks and leaf sprung rear frame.
Between 1917 and 1919 tests were carried out with a prototype and in November 1919 the definitive model was presented to the eager public.
Engine capacity was increased to 698 cc (the prototype had 654 cc) and the gearbox housing was now an integral part of the frame.
Another interesting feature of this Raleigh is that it has twin springs to each valve to ensure efficient cam profile following. -
Yesterdays Antique Motorcycles
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