What is the engine displacement of the 1922 AJS 6 Bigport?

The 1922 AJS 6 Bigport has an engine displacement of 349.0 ccm (21.30 cubic inches).

1922 AJS 6 Bigport Price, Specs, Review

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Review

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The 1922 AJS 6 Bigport, sharing its design with the following year's model, offers a window into the past. Its 349cc single-cylinder engine was a solid performer for its time, providing sufficient power for daily riding and weekend excursions. The 3-speed gearbox enabled riders to manage the engine's output across various terrains. The ergonomics likely placed the rider in an upright stance, offering a clear view of the road ahead. The front expanding drum brake, while primitive compared to modern disc brakes, was the best available technology for controlling speed and stopping safely. This motorcycle would have appealed to riders who valued dependability and simplicity. It represented a practical solution for navigating the roads of the early 1920s, offering a taste of personal mobility and the excitement of early motorcycling.

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License Class (EU)

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Rule of thumb: under 125cc / 15HP → A1, under 47HP → A2, above → A.

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Fuel Economy & Running Costs

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Estimated average for 349cc class: 45-60 mpg (4.0-5.5 L/100km)

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Insurance Class

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Insurance grouping for AJS 6 Bigport (349cc):