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Lot 375: c.1934 Norton 490cc International Model 30

Collectors' Motorcycles, Bonhams (16 October 2005)

One of the most charismatic model names in motorcycling history, ‘International’ was first used by Norton for its top-of-the-range sports roadster in 1932. The Inter’s Arthur Carroll-designed overhead-camshaft engine had been developed in the works racers for the preceding two years, and although it retained the classic 79x100mm bore/stroke dimensions and shaft-and-bevels cam drive of the existing CS1, was entirely new. Based on the works bikes and intended for racing, the International could nevertheless be ordered with refinements such as lights and a kickstart-equipped gearbox. By the time production halted in 1939 it was being built with a four-speed foot-change ’box and plunger rear suspension, reappearing after the war in similar guise save for the adoption of the hydraulically-damped Roadholder front fork, which replaced the pre-war girder. The Inter remained fundamentally unchanged from then until 1953 when it gained the Featherbed frame, all-alloy engine and ‘laid down’ gearbox. Believed to date from circa 1934, this racing International has been sensibly updated with the later (1939-onwards) Manx-type alloy cylinder head and barrel, while the crankcases appear to be magnesium components. Offered without documents.

Lot Details
Auction Collectors' Motorcycles
Bonhams, Classic & Motorcycle Mechanics Show, Stafford
TypeMotorcycle
Lot Number375
Estimate£6000-£8000
Outcome SOLD
Hammer Price£7500
Hammer Price (inc premium)£8625
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