All AJS Models 1959 Motorcycles
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AJS Model 20 500

1959 · Vintage

Year1959
MakeAJS
Displacement498.00 ccm (30.39 cubic inches)
CategoryVintage
AJS Model 20 500
AJS Model 20 500 - Main Image
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Review

The 1959 AJS Model 20 500 holds a significant place in the annals of British motorcycling, representing a period of robust growth and fierce competition. As a 1959 model, it was a key offering from AJS, a brand with a rich heritage in manufacturing dependable and capable motorcycles. This particular year saw the Model 20 competing directly with other half-liter machines of the era, such as the Triumph Tiger 500 and the Norton 88, all vying for the attention of riders seeking a balance of power and practicality. It was a time when British manufacturers dominated the global motorcycle landscape, and the Model 20 was a proud contender in this vibrant market.

Underneath its classic lines, the AJS Model 20 500 housed a 498.00 ccm (30.39 cubic inches) engine, a powerplant designed for reliable performance. This unit produced a respectable 20.00 HP (14.6 kW) at 6800 RPM, allowing the Model 20 to achieve a top speed of 137.0 km/h (85.1 mph). Weighing in at 178.0 kg (392.4 pounds), the motorcycle offered a solid and stable ride, a characteristic often appreciated by riders of vintage machines. Its fuel tank capacity of 13.50 litres (3.57 gallons) provided a decent range for touring and everyday use, making it a practical choice for the discerning rider of its time. These specifications positioned it as a capable middleweight, suitable for a variety of riding scenarios.

Riding the AJS Model 20 500 would have offered a quintessential vintage experience. Its upright stance and comfortable seating position were conducive to longer journeys, a common expectation for motorcycles in its category. The suspension, while not featuring modern refinements, was designed to absorb road imperfections adequately, contributing to a relatively smooth ride. The controls were straightforward and intuitive, reflecting the common design philosophies of the period. While perhaps not offering the razor-sharp handling of later sport models, the Model 20 provided predictable and manageable dynamics, making it an accessible machine for a broad range of riders.

Categorized as a Vintage motorcycle, the 1959 AJS Model 20 500 primarily appeals to enthusiasts and collectors who appreciate the engineering and aesthetics of a bygone era. Its target audience today includes those passionate about preserving motorcycle history, participating in classic rallies, or simply enjoying the unique experience of piloting a machine from the late 1950s. For these individuals, the Model 20 represents not just a mode of transport, but a tangible piece of British motorcycling heritage. Its blend of classic styling, dependable performance for its time, and a tangible connection to the golden age of two-wheeled motoring makes it a cherished acquisition for vintage motorcycle aficionados.

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Pros (Advantages)

✅ Why buy this bike?

Classic design: The AJS Model 20 500 1959 motorcycle features a timeless and iconic design that appeals to vintage motorcycle enthusiasts.Reliable engine: The 500cc engine of the AJS Model 20 is known for its durability and reliability, providing a smooth and consistent performance.Comfortable ride: With its well-balanced chassis and suspension setup, the AJS Model 20 offers a comfortable ride quality even on long journeys.Good handling: The handling characteristics of the AJS Model 20 are praised for their agility and stability, making it a joy to ride on twisty roads.Collectibility: As a vintage motorcycle from the 1950s, the AJS Model 20 500 holds a high collectible value among motorcycle enthusiasts and collectors, making it a sought-after bike in the market.
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Cons (Disadvantages)

⚠️ Things to consider

Limited power output compared to modern motorcycles, resulting in slower acceleration and top speed.Outdated suspension and braking systems may not provide optimal performance and safety by today's standards.Limited availability of spare parts and maintenance expertise due to the age of the motorcycle.Potential for reliability issues due to the age of the bike and wear and tear on components.Lack of modern amenities such as ABS, traction control, and fuel injection that are now common on newer motorcycles.
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Alternatives

⚖️ Comparison & Competition

Triumph Bonneville T120: The Bonneville T120 is a classic British motorcycle known for its iconic design and smooth performance. It features a powerful 650cc engine and offers a comfortable ride for long distances.Norton Dominator 99: The Norton Dominator 99 is a vintage British motorcycle that exudes style and sophistication. With a 600cc engine and agile handling, it is a favorite among enthusiasts for its performance and timeless design.BSA Gold Star: The BSA Gold Star is a legendary motorcycle synonymous with speed and performance. Equipped with a 500cc engine, it was a dominant force in motorcycle racing during its heyday and remains highly sought after by collectors.Royal Enfield Bullet 500: The Royal Enfield Bullet 500 is a classic motorcycle with a rich heritage dating back to the early 20th century. Known for its rugged build quality and thumping 500cc engine, it is a popular choice for riders looking for a vintage-inspired ride.Matchless G80: The Matchless G80 is a classic British motorcycle that offers a blend of style and performance. With a 500cc engine and distinctive design cues, it is a rare gem for collectors and enthusiasts alike
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License Class (EU)

The AJS Model 20 500 produces 20 HP, fitting A2 license limits (max 35 kW / 47 HP). For riders 18+.

Fuel Economy & Running Costs

Estimated average for 498cc class: 45-60 mpg (4.0-5.5 L/100km)

⛽ Tank: 13.50 litres (3.57 gallons)

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Insurance Class

Insurance grouping for AJS Model 20 500 (498cc):

  • 📋 Group 8-15 — mid-range
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    Insurance Calculator (UK est.)

    Personalised premium estimate for the AJS Model 20 500 (UK rates):

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

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    Price Estimate

    Estimated price range for the AJS Model 20 500 based on comparable motorcycles:

    AVERAGE
    $2,761

    📊 Category-based (18 motorcycles) · Approximate (USD)

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    Buy New & Used

    Find new and used AJS Model 20 500 1959 listings:

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

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