Plumstead’s Posh Parallel: 1952 AJS Model 20

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by Robert Smith
Chuck Thompson’s 1952 AJS Model 20.

1952 AJS Model 20 Spring Twin

  • Engine: 498cc air-cooled OHV parallel twin, 66mm x 72.8mm bore and stroke, 7:1 compression ratio, 29hp @ 6,800rpm
  • Top speed: 87mph
  • Carburetion: Single 1in Amal 76
  • Published on Aug 8, 2018
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