Norton International

Norton International

Manufacturer	Norton Motorcycles
Also called	Norton Inter, Cammy Norton, Model 30, Model 40
Production	1931–1939, 1947–1958 (Model 30 & Model 40)
Engine	490 cc (30 cu in) / 349 cc (21.3 cu in) single overhead cam air-cooled
Bore / stroke	79 mm × 100 mm (3.1 in × 3.9 in) 71 mm × 88 mm (2.8 in × 3.5 in)
Top speed	93 mph (150 km/h)[citation needed]
Power	29 bhp (22 kW)[citation needed]
Transmission	Four speed, chain final drive
Brakes	Drum
Wheelbase	54.75 in (1,391 mm)

The Norton International or Cammy Norton is a Norton Motors Ltd overhead cam (OHC) motorcycle built between 1931 and 1957.

More than a TT replica sports roadster, the OHC Model 30, was 500 cc and the OHC Model 40 was 350 cc. During the 1930s it could be ordered from the Norton factory with all manner of racing parts fitted. Such factory bikes won many Isle of Man TT races during the 1930s, many of them 1-2-3 results.

Norton factory riders on Inters, including Jimmie Guthrie, Jimmy Simpson, Stanley Woods were household names of the era. Production of the Model 30 and 40 International ended temporarily on the outbreak of World War II.^[1]

Production of the Inter resumed for 1947, and continued until 1957. Although the engine continued almost from first to last unchanged, the famed featherbed frame was adopted for the 1953 models. By the 1950s though, the model was outdated and outclassed by the new twins and shared only the featherbed frame with its postwar Manx racing cousins, and only sold in small numbers. In the final years the Inter was not even mentioned in the catalog and was available only to special order.