What is the engine displacement of the 1960 AJS 31 650 Swift?

The 1960 AJS 31 650 Swift has an engine displacement of 646.0 ccm (39.42 cubic inches).

How much does the 1960 AJS 31 650 Swift weigh?

The 1960 AJS 31 650 Swift has a dry weight of 176.0 kg (388.0 pounds).

1960 AJS 31 650 Swift Price, Specs, Review

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Review

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The 1960 AJS 31 650 Swift provides a taste of classic British motorcycling, with a 646cc parallel-twin engine providing the power. Although specific horsepower figures are unavailable, the engine's characteristics suggest a focus on usable torque and a smooth power delivery. Weighing in at 176 kg and equipped with a four-speed gearbox, the 650 Swift aims for a balanced and engaging riding experience, supported by a hydraulic telescopic front suspension. Its design prioritizes rider comfort with an upright seating position suitable for longer rides. The 16-liter fuel tank extends the bike's range, allowing for more extended journeys without frequent stops. Like many motorcycles of its era, the 650 Swift relies on drum brakes, requiring riders to anticipate stops and apply braking force accordingly. This machine would appeal to riders who appreciate the simplicity and charm of vintage motorcycles. Its straightforward design, combined with the usable power of its 646cc engine, makes it a good choice for those who enjoy classic rides. It offers a connection to motorcycling's past, providing a unique and engaging experience.

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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 646cc class: 35-50 mpg (5.0-7.0 L/100km)

⛽ Tank: 16.00 litres (4.23 US gallons)

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Insurance Class

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Insurance grouping for AJS 31 650 Swift (646cc):

📋 Group 15-20+ — performance class, higher premiums

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Insurance Calculator (UK est.)

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Personalised premium estimate for the AJS 31 650 Swift (UK rates):

💡 Estimate based on UK market averages. For real quotes, compare on Compare the Market, MoneySuperMarket, GoCompare.

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Buy New & Used

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Find new and used AJS 31 650 Swift 1960 listings:

🛒 eBay Motors 🏍️ Cycle Trader 🇬🇧 Auto Trader UK 🔍 Google Listings

💡 Third-party listings. MotoBike Info is informational only.

👤 Final premium varies by rider age, history, location.

AJS 31 650 Swift

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