Triumph Roadster Tyres

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1947 Triumph Roadster 1.8

1947 Triumph Roadster 1.8

Triumph Roadster 1946-1949

  • The original equipment on a Triumph Roadster 1800 was a 575 - 16 crossply tyre when it was first released in 1946.
  • 600 - 16 Tyres are close enough in size to 575 - 16 tyres to be fitted to a Triumph Roadster 1800 and later Triumph Roadster 2000 of 1948, and this size offers more and better options.
  • If you want to put crossply tyres on your Triumph Roadster the 6.00-16 PIRELLI STELLA BIANCA would be excellent.
  • For modern roads a Triumph Roadster will drive very nicely on an appropriate radial tyre for which the 185 SR 16 Michelin X is recommended by Longstone Tyres.
  • The Triumph Roadster fitted tube-type wheels; innertubes are required for these wheels, our suggestion for these tyres is the Michelin 16F.
  • The Roadster 1800 was in production from 1946–1948 and the Roadster 2000 was made from 1948–1949. Both models fitted the same wheels and can fit the same sized tyres.

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    Triumph Roadster Recommended Tyres

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History of the Triumph Roadster

Built between 1946-1949 with 4501 being made, it was the first car that Triumph made post-World War Two that would later be superseded by the Triumph 2000 Roadster. Like the Triumph Renown, it was made from Aluminium due to immediate post-war prices of steel being high which in turn led to the shortened life of the model once the price of steel fell and aluminium rose. The engine was a 1.5-litre, four-cylinder side-valve design adapted to overhead valves by Harry Weslake and constructed especially for SS-Jaguar by Standard before World War II. The Triumph variant used a downdraught Solex carburettor and a compression ratio of 6.7:1. A four-speed gearbox was employed, featuring synchromesh on the top three gears. Hydraulic brakes were used. In a 1947 test conducted by Autocar magazine, the maximum speed attained was 75 mph, with a 0–60 mph time of 34.4 seconds. The publication, clearly wanting to be positive without deceiving its readers, defined the top speed as "satisfying but not startlingly high".

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