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Norton 500 1949

1949 NORTON 500. Although Nortons achieved so many I-1 successes in the Senior T.T. series in the 1930-49 period, this was mainly because they pressed ahead with development of their race machinery on established lines. Each year they were a little better and went a little quicker. They lost the 1935 race by 4 sec. to the big Guzzi

They were trounced by the B.M.W. in 1939—but had not touched the 1938 machines due to pressure of work for the Government. In all other years they won.
Changes were made steadily to the machine; the gearbox was altered to a four-speeder, plunger rear springing came in 1936 to be followed in 1938 by the first Norton telescopic forks—the first British factory to use them in the modern style. Brakes got bigger and better, and conical light-alloy hubs were used on both wheels, along with alloy rims.

In 1930 the engine had iron head and barrel and a horizontal inlet tract. Downdraught appeared in 1931, alloy barrels and heads in the middle thirties and the first double o.h.c. soon followed.
All these features were used on the 1949 machine, with alloy tanks, hydraulic damping on the rear suspension, and everything was set to win the T.T. Win it did. Harold Daniell, the man whose 1938 lap record of 91 m.p.h. was still standing (for that was set on the petrol-benzole, whereas in '49 the fuel was "Pool"), set a cracking pace from the start and won handsomely at 8693 m.p.h., only 2i m.p.h. short of the petrol-benzole record average.

Although the Norton had won, its handling at the very high speeds of which it was capable left a lot to be desired. It was a machine that had to be ridden in rather the same fashion as a high-speed scrambler, with sturdy muscles more or less a prerequisite for success.
Over in Ulster a couple of brothers thought they could improve this. . . .

Although almost twenty years separated the model shown on the preceding page this 1949 job, the lines of the two machines are surprisingly similar. Keen eyes will that this model has the experimental forks with the large hollow wheel spindle cai in front of the lower members, tried by the factory in the 1949 T.T.

Specification
Engine: single-cylinder 500 c.c.
camshafts by shaft and bevels. Ignition: magneto.Transmission: chain via four-speed gearbox.
Frame: cradle type with single down-tube and twin
lower rails; hydraulically damped plunger rear
suspension. Forks: "Roadholder" telescopies.