What is the engine displacement of the 1928 AJS G6 Bigport?

The 1928 AJS G6 Bigport has an engine displacement of 349.00 ccm (21.30 cubic inches).

1928 AJS G6 Bigport Price, Specs, Review

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Review

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The AJS G6 Bigport 1928 stands as a timeless classic in the world of motorcycles, boasting a combination of power, style, and innovation that has captivated enthusiasts for decades. With its distinctive big port cylinder head design, this machine delivers impressive performance and a unique aesthetic that sets it apart from its contemporaries. The 1928 model showcases the pinnacle of British engineering excellence, featuring a rugged frame, reliable engine, and an overall design that exudes a sense of adventure and freedom. Despite being nearly a century old, the AJS G6 Bigport 1928 continues to hold its value among collectors and riders alike. Its historical significance, coupled with its rarity and enduring appeal, make it a prized possession for those who appreciate the craftsmanship and heritage of vintage motorcycles. Whether displayed as a showpiece or taken out for a leisurely ride, the AJS G6 Bigport 1928 represents a bygone era of motorcycling excellence that continues to inspire admiration and awe in the hearts of enthusiasts around the world.

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Pros (Advantages)
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✅ Why buy this bike?

Classic Design: The AJS G6 Bigport 1928 features a timeless and stylish design that appeals to motorcycle enthusiasts and collectors.

Powerful Engine: It is equipped with a robust and powerful engine that provides a thrilling riding experience, especially considering the era in which it was built.

Authentic Vintage Feel: Riding the AJS G6 Bigport 1928 allows riders to experience the authentic feel of a vintage motorcycle, transporting them back in time.

Smooth Handling: Despite its age, this motorcycle is known for its smooth handling and stability on the road, making it a joy to ride even by modern standards.

Rarity and Collectibility: The AJS G6 Bigport 1928 is a rare find, adding to its appeal for collectors looking to own a piece of motorcycle history.

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Cons (Disadvantages)
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⚠️ Things to consider

Limited availability of spare parts due to the age of the motorcycle.

Lack of modern safety features such as ABS or traction control.

Potential maintenance challenges due to the vintage design and technology.

Reliability issues may arise with an older motorcycle that has been well-used.

Difficulty in finding qualified mechanics with experience working on vintage bikes like the AJS G6 Bigport 1928.

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Alternatives
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⚖️ Comparison & Competition

Brough Superior SS100 (1924): The Brough Superior SS100 is a legendary British motorcycle known for its exceptional performance and quality craftsmanship. It features a powerful V-twin engine and advanced suspension for a smooth ride.

Harley-Davidson JD (1925): The Harley-Davidson JD is an iconic American motorcycle with a classic design and reliable performance. It is powered by a large displacement V-twin engine and offers a comfortable riding experience.

Indian Scout (1920): The Indian Scout is a historic American motorcycle with a rich racing heritage. It is renowned for its agility and speed, thanks to its lightweight frame and powerful engine.

Norton Model 18 (1922): The Norton Model 18 is a British motorcycle known for its rugged reliability and off-road capabilities. It is equipped with a sturdy frame, robust suspension, and a responsive engine for adventurous riding.

Royal Enfield Model 180 (1925): The Royal Enfield Model 180 is a classic British motorcycle loved for its vintage charm and enduring appeal. It features a smooth single-cylinder engine and a timeless design that evokes nostalgia for a bygone era

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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 G6 Bigport (349cc):

📋 Group 8-15 — mid-range

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Insurance Calculator (UK est.)
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Personalised premium estimate for the AJS G6 Bigport (UK rates):

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

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Price Estimate
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Estimated price range for the AJS G6 Bigport based on comparable motorcycles:

AVERAGE

$2,439

📊 Category-based (20 motorcycles) · Approximate (USD)

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Buy New & Used
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Find new and used AJS G6 Bigport 1928 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.

⚙️ Full Specifications

No specifications found.

📋 Detailed Review

The AJS G6 Bigport 1928 stands as a timeless classic in the world of motorcycles, boasting a combination of power, style, and innovation that has captivated enthusiasts for decades. With its distinctive big port cylinder head design, this machine delivers impressive performance and a unique aesthetic that sets it apart from its contemporaries. The 1928 model showcases the pinnacle of British engineering excellence, featuring a rugged frame, reliable engine, and an overall design that exudes a sense of adventure and freedom. Despite being nearly a century old, the AJS G6 Bigport 1928 continues to hold its value among collectors and riders alike. Its historical significance, coupled with its rarity and enduring appeal, make it a prized possession for those who appreciate the craftsmanship and heritage of vintage motorcycles. Whether displayed as a showpiece or taken out for a leisurely ride, the AJS G6 Bigport 1928 represents a bygone era of motorcycling excellence that continues to inspire admiration and awe in the hearts of enthusiasts around the world.

🎬 Video Reviews

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⚡ Key Specs

Displacement349.00 ccm (21.30 cubic inches)

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AJS G6 Bigport

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