What is the engine displacement of the BSA Mk111?

The BSA Mk111 has an engine displacement of 650.0 ccm (39.66 cubic inches).

BSA Mk111 Price, Specs, Review

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Review

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The 1967 BSA Spitfire Mk III represents the pinnacle of BSA's twin-cylinder performance motorcycles of the era. Its 650cc engine delivers a strong and responsive power output, making it a popular choice for riders seeking a thrilling riding experience. While specific horsepower figures vary, the Spitfire Mk III was known for its impressive acceleration and top speed. The 5-gallon fuel tank provides a good range for longer rides, while the telescopic front suspension contributes to improved handling and comfort. The Spitfire Mk III's ergonomics are sporty, with a slightly forward-leaning riding position that encourages spirited riding. The motorcycle is designed for riders who appreciate performance and handling. The expanding brake (drum brake) on the front wheel offers stopping power. In summary, the 1967 BSA Spitfire Mk III is a desirable classic motorcycle that offers a combination of performance, handling, and iconic styling. Its powerful engine, sporty ergonomics, and classic British design make it an appealing choice for riders who appreciate vintage motorcycles and seek an exhilarating riding experience.

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Pros (Advantages)

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✅ Why buy this bike?

• Classic British styling offers timeless appeal and turns heads wherever it goes. • Torquey 650cc parallel-twin engine provides satisfying low-end grunt for spirited riding. • Relatively simple mechanicals make home maintenance and repairs more accessible for enthusiasts. • Strong collector's market ensures good resale value and potential for appreciation. • Comfortable riding position and compliant suspension make it suitable for longer journeys. • Distinctive exhaust note from the parallel-twin is a treat for the ears.

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Cons (Disadvantages)

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⚠️ Things to consider

• Vibrations from the parallel-twin can become noticeable on extended rides. • Lucas electrics are notoriously unreliable, often requiring upgrades or frequent attention. • Drum brakes offer limited stopping power compared to modern disc setups, requiring anticipation. • Oil leaks are a common characteristic, demanding vigilant monitoring and occasional gasket replacement. • Parts availability can be challenging for some specific components, requiring specialist suppliers.

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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 650cc class: 35-50 mpg (5.0-7.0 L/100km)

⛽ Tank: 18.92 litres (5.00 US gallons)

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Insurance Class

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