AJS Model 31 650 Swift 1966 - Specifications & Review

Introducing the 1966 AJS Model 31 650 Swift
The 1966 AJS Model 31 650 Swift stands as a testament to the golden age of British motorcycling, perfectly positioned in the allround category. This motorcycle was crafted for those who sought versatility without compromising on style or performance. With its distinctive classic aesthetics and robust build, it appealed to both everyday riders and enthusiasts alike. The Model 31 Swift became a staple for those who wanted a reliable companion for both city commutes and weekend adventures, encapsulating the spirit of freedom that defined the era.

Engine Performance and Riding Characteristics
At the heart of the AJS Model 31 is a twin, four-stroke engine that boasts a displacement of 646cc, delivering a spirited 31.40 horsepower at 6000 RPM. This power train, coupled with a compression ratio of 7.5:1, allows for a smooth and responsive ride that’s both enjoyable and engaging. Riders will appreciate the delightful torque delivery, allowing for confident acceleration out of corners and a satisfying rush on straightaways. The motorcycle’s wet multiplate clutch and chain final drive contribute to seamless gear transitions, making it an absolute joy to navigate through winding roads or urban traffic. With its lightweight frame tipping the scales at just 176 kg (388 pounds), the Model 31 offers a nimble and balanced ride, making it accessible for riders of various skill levels.

Key Features and Technology
The AJS Model 31 is not just about performance; it’s also packed with thoughtful features that enhance the riding experience. The double cradle frame provides optimal stability, while the hydraulic telescopic front suspension and twin shock Girling rear suspension work in harmony to absorb bumps and ensure a comfortable ride. Both the front and rear drum brakes offer reliable stopping power, although they reflect the technology of their time. The classic design is complemented by the use of a magneto ignition and air cooling, which adds a nostalgic charm while ensuring the engine runs reliably. With a fuel capacity of 16 liters (4.23 gallons), riders can enjoy longer rides with fewer stops, enhancing the overall experience of the open road.

Pros and Cons
Pros:

1. Classic Aesthetic: The 1966 AJS Model 31 Swift exudes vintage charm, appealing to classic motorcycle enthusiasts.
2. Balanced Performance: With its lightweight build and responsive engine, the Model 31 delivers a nimble and enjoyable ride.
3. Versatile Design: Suitable for both daily commuting and weekend excursions, making it a practical choice for various riding conditions.

Cons:

1. Braking Technology: The drum brakes, while reliable for their time, may not provide the stopping power expected by modern standards.
2. Limited Power: With 31.40 HP, some riders may find the performance lacking compared to contemporary machines.
3. Maintenance Needs: As with many classic bikes, the AJS Model 31 requires regular upkeep and may not be as user-friendly for novice mechanics.

In summary, the 1966 AJS Model 31 650 Swift is a brilliant blend of classic design and reliable performance, making it an enduring favorite among motorcycle lovers. Whether you’re a seasoned rider or a newcomer to the world of vintage bikes, the Model 31 promises a captivating journey through time on two wheels.