Norton Commander (motorcycle) Norton Commander (motorcycle) The Commander was a Norton motorcycle with a Wankel rotary engine. The first Norton Wankel motorcycle was the 1987 air-cooled Classic, built as a special edition of just 100 machines. It was followed by the air-cooled Interpol 2 model. The Commander was a liquid-cooled successor to the Interpol 2, liquid cooling being adopted for greater power and reliability. The Commander's final-drive chain was protected by a full enclosure. Some cycle parts (such as front wheel, forks & brakes) were bought-in Yamaha items. Two types of Commander were built. The P52 was a single-seat model equipped for police
Henderson Motorcycle cc) side-valve engine, with 2.6875 inch (68.3 mm) bore, and 3.5 inch (88.9 mm) stroke, was rated at 18 hp (28 bhp). The K had a top speed of 80 mph (128 km/h). The Henderson Model K was the first motorcycle to use full pressure engine lubrication. It was also the first motorcycle to offer, an optional, reverse gear (for use with sidecars). The frame had steel forgings on every joint. Forks and handlebars were the same as the Series 20 Excelsior. Among its several advanced features were electric lighting and a fully enclosed chain. The K continued on sale