Examples include BMW, Zundapp and Douglas HO Twins have conrods running on a common crank, with one on the exhaust stroke and the other on inlet.
Shaft Drive
Examples include BMW, Zundapp and Velocette LE Cardan drive eliminates chain and associated mess and maintenance. Often referred to as a "diff", the final drive unit consists of bevel crown and pinion gears.
Featured Pages Pierton Gaston Durand, the manufacturer, was talented racer who registered 44 patents between 1925 and 1953.
Pierton of ParisMurder and Mayhem In May 1998 three rare classic racing motorcycles were stolen, an AJS 7R, a Matchless G45 and a G50. The story involves two murders and a good many other motorcycles.
Stolen Classics
Production years: 1935-1937
Power: 33 CV at 5000 rpm
Capacity: 735cc
Engine: Boxer 4-stroke, overhead valve
Transmission: Cardan Maximum speed: 140 Km/h
Units produced: 434
Weight: 183 Kg
In 1935 BMW introduced two models with telescopic forks, the R-12 and the R-17, the production motorcycles incorporating oil-dampers in the front fork. The R-17 is the sports version.
