Home WORLD 1927 AJS H6 Bigport 350cc 1 Cyl Ohv Start Up

1927 AJS H6 Bigport 350cc 1 Cyl Ohv Start Up

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After victory in the 1920 Junior TT, AJS’s new overhead-valve 350 racer scored a memorable double the following year, Tom Sheard winning the Junior race, and Howard Davies the Senior – the first time such a feat had been achieved on a 350.

source.image: classic-motorcycle.com

  • Manufacturer: AJS
  • Model: H6 Bigport
  • Year: 1927
  • Bore/Stroke: 74x81mm
  • Capacity: 349cc
  • Engine type: 4-stroke / ohv
  • Cylinders: 1
  • Compression: 7:1
  • Topspeed: 130km/h
  • Weight: 90kg

The production version made its debut in November 1922, delighting clubmen everywhere with its ‘racer on the road’ performance. A right-first-time design destined to achieve countless successes in the hands of privateers, the overhead-valve 350 AJS – latterly known as the ‘Big Port’ – changed only in detail before being superseded by a much-revised M6 model for 1929.

The latter’s engine incorporated a number of improvements including enclosed rocker gear and dry-sump lubrication, while the frame was redesigned to accommodate a saddle tank, and Webb forks replaced the earlier Druids.

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This handsome and sporting vintage machine is equipped with a three speed AJS countershaft gearbox. It is older restoration and a well running motorcycle.

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