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The Norton 650SS is a 650 cc (40 cu in) vertical twin motorcycle made by Norton Motorcycle Company from 1962 to 1967. The 650SS was based on the Norton Manxman. The machine was capable of 110–115 mph (177–185 km/h). [1] [2] SS stood for Sports Special. Norton discontinued its 600 cc models to concentrate on production of the 650SS, which ...
The Norton 650 Dominator was a 650 cc vertical twin motorcycle manufactured by the British Norton Motorcycle Company from 1962 to 1967. Initially production was at Norton's Bracebridge St, Birmingham factory, but following the factory's closure in 1963, production was transferred to parent company AMC 's works in Plumstead , London. [ 2 ]
First Norton Twin Motorcycle, designed by Bert Hopwood Model 77: 497cc 1950–1952 A rigid framed version of the Model 7, supplied only to the Australian market. Model 77: 596cc 1957–1958 Built mainly for sidecar use Dominator 88: 497cc 1952–1966 Same engine as a model 7 but in a featherbed frame Dominator 99: 596cc 1956–1962 Nomad: 497cc ...
By September 1961 the Norton 650SS appeared for the UK market, the 750 cc (Atlas). By 20 April 1962 for the American market as they demanded more power, [clarification needed] but the increases to the vertical twin engine's capacity caused a vibration problem at 5500 rpm. A 500 cc vertical twin is smoother than a single-cylinder, but if the ...
The Norton Model 99 Dominator was a 600 cc vertical twin motorcycle manufactured by the British Norton Motorcycle Company at their Bracebridge St, Birmingham factory from 1956 to 1962. The 99 was based on the 500 cc Model 88 Dominator with an enlarged engine. The model was superseded by the 650SS.
The Mark 1 Atlas was launched as the 750SS in the early 1960s, but by the time it appeared c. 1962 it was being called a 750cc Atlas, with Norton's famous Featherbed frame. Designer Bert Hopwood ’s 1949 497cc Dominator engine had been bored and stroked over the years to 745cc, via 600cc and then 650cc versions, to appeal to the American ...
Norton's competitors were offering 650 cc machines so the engine was again enlarged.to 89mm. with an all New crankcases were required for the longer stroke along with a new crankshaft that had larger crankpins and a wider flywheel, all-new cylinder barrels and pistons with short skirts and a;; new downdraft cylinder head for twin carbuerettors ...
The Jubilee is a Norton motorcycle made from 1958 to 1966. [1] Named to commemorate Norton's Diamond Jubilee, the 249 cc Jubilee was a break with Norton tradition designed in response to UK legislation [2] introduced in 1960 limiting learner riders to motorcycles of under 250 cc. [3] It had the smallest engine ever made by Norton, [1] and was the first Norton with a unit construction engine ...