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Complete Manufacturer List
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Norton JPS 750 Daytona
Norton withdrew from racing in 1954. The company protested
that the cost of racing was constantly rising because four-cylinder motorcycles
were used, especially by the Italians, that had nothing in common with normal
production motorcycles. The pride of British motorcycles was their chassis.
Following the success of the famous Featherbed chassis of Norton's two-shaft
Grand Prix, The redesigned Commando that Norton entered at Daytona Beach in 1972 came in fourth overall, thanks chiefly to the skill of Phil Read. The following year the Norton was again redesigned. It was now called the John Player Special (JPS), because of financing from the Player cigarette company. It was raced at Daytona Beach and at Imola, Italy. The engine was still the usual two-cylinder one derived
from the production models, while the chassis was constructed with a steel-plate
body. The fairing, according to the builders, provided an increase in speed
equal to 15 more h.p. in the engine.
By the end of 1973 the Norton JPS's poor performance was being blamed on the chassis. The single-piece body was abandoned in favor of a complicated structure of tubular elements. During the 1974 season the performance of the JPS improved and it often came in among the leading positions. It was ridden by Williams and by Dave Croxford that season. Between 1975 and 1976 the most important modification was made—the engine was changed. But this last attempt to make the motorcycle competitive, if not a winner, was disappointing, and Norton withdrew from racing for a second time. Motorcycle: Norton JPS 750 Daytona Manufacturer: Norton
Motors Ltd., Birmingham Norton JPS 750 1972
With tobacco giant John Player’s support, Norton (which was restricted to production derived machines) returned to competition in 1972, in the 750 class. During its first year, the team used a modified Commando engine and a tubular frame. But the team’s boss and chief development engineer, Peter Williams, was convinced that a monocoque frame was the right way to go. He created the Norton JPS Monocoque, which only raced in 1973. Lack of Finance Tourist Trophy Winner SPECIFICATIONS ulic double disk; rear, hydraulic disk
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Any corrections or more information on these motorcycles will be kindly appreciated. |