The 650SS was a Norton motorcycle made by between 1961 and 1967 at Norton’s Bracebridge Street works in Birmingham. Developed from the Norton Dominator, the Featherbed frame was altered so that the top rails were closer together to create what became known as the 'slim line featherbed'. A 650cc twin carburettor engine was installed which was capable of 110–115 mph (180–185 km/h).[1][2] The 'SS' stood for 'Sports Special' and the 600cc models were discontinued to concentrate on production of the 650SS, which quickly earned a reputation as the best of the Dominators.


Courtesy Webbs NZ

Norton Motorcycles of the 1960s