What is the engine displacement of the 1955 Sunbeam S8 500?

The 1955 Sunbeam S8 500 has an engine displacement of 487.00 ccm (29.72 cubic inches).

How much horsepower does the 1955 Sunbeam S8 500 have?

The 1955 Sunbeam S8 500 produces 24.00 HP (17.5 kW)) @ 6000 RPM of power.

How much does the 1955 Sunbeam S8 500 weigh?

The 1955 Sunbeam S8 500 has a dry weight of 187.0 kg (412.3 pounds).

1955 Sunbeam S8 500 Price, Specs, Review

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Review

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The Sunbeam S8 500, produced in 1955, is a classic motorcycle that continues to captivate enthusiasts with its unique design and advanced features for its time. One of the key highlights of the Sunbeam S8 500 is its innovative overhead camshaft engine, which provided a smooth and powerful performance that set it apart from its competitors. The bike's distinctive styling, with its enclosed bodywork and shaft drive system, further added to its appeal and made it a standout in the market. Despite being over six decades old, the Sunbeam S8 500 remains a sought-after collector's item due to its rarity and historical significance. Its value lies not only in its mechanical prowess but also in its place in motorcycle history as a pioneering model that pushed the boundaries of design and technology. For motorcycle enthusiasts and collectors alike, the Sunbeam S8 500 represents a timeless piece of two-wheeled engineering that continues to be cherished and admired for its elegance and performance.

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Pros (Advantages)
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✅ Why buy this bike?

The Sunbeam S8 500 1955 is equipped with a smooth and powerful 500cc parallel-twin engine, providing a balanced mix of performance and reliability.

Its unique styling and design, including the iconic teardrop-shaped fuel tank and sleek lines, make it a standout classic motorcycle that turns heads wherever it goes.

The Sunbeam S8 500 1955 features a comfortable and upright riding position, making it ideal for long-distance cruising or urban commuting.

With a reputation for solid build quality and engineering, the Sunbeam S8 500 1955 is known for its durability and longevity, making it a sought-after collector's item.

The advanced features for its time, such as the shaft drive system and plunger rear suspension, contribute to a smooth and stable ride experience, setting it apart from other motorcycles of its era.

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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.

Relatively low power output compared to modern motorcycles.

Potential for higher maintenance costs due to the vintage nature of the bike.

Limited aftermarket support for customization or upgrades.

Older technology may result in less reliable performance compared to newer models.

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Alternatives
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⚖️ Comparison & Competition

Triumph Speed Twin 1955

The Triumph Speed Twin is a classic British motorcycle known for its smooth performance and iconic design. It features a 500cc parallel-twin engine and offers a comfortable ride for long distances.

Norton Dominator 99 1955

The Norton Dominator 99 is a powerful and agile motorcycle that was popular in the 1950s. It is equipped with a 600cc parallel-twin engine, known for its reliability and performance on both city streets and open roads.

BSA Gold Star 1955

The BSA Gold Star is a legendary motorcycle with a strong racing heritage. It is powered by a 500cc single-cylinder engine, making it a favorite among enthusiasts for its speed and handling capabilities.

Ariel Square Four 1955

The Ariel Square Four is a unique motorcycle with a distinctive design, featuring a 1000cc inline-four engine in a square configuration. It offers smooth power delivery and a one-of-a-kind riding experience.

Royal Enfield Meteor Minor 500 1955

The Royal Enfield Meteor Minor 500 is a reliable and versatile motorcycle known for its durability and classic styling. It comes with a 500cc single-cylinder engine, making it a popular choice for riders looking for a vintage feel with modern performance

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License Class (EU)
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The Sunbeam S8 500 produces 24 HP, fitting A2 license limits (max 35 kW / 47 HP). For riders 18+.

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Fuel Economy & Running Costs
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Estimated average for 487cc class: 45-60 mpg (4.0-5.5 L/100km)

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Insurance Class
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Insurance grouping for Sunbeam S8 500 (487cc):

📋 Group 8-15 — mid-range

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Insurance Calculator (UK est.)
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Personalised premium estimate for the Sunbeam S8 500 (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 Sunbeam S8 500 based on comparable motorcycles:

AVERAGE

$2,647

📊 Category-based (15 motorcycles) · Approximate (USD)

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Buy New & Used
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Find new and used Sunbeam S8 500 1955 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 Sunbeam S8 500, produced in 1955, is a classic motorcycle that continues to captivate enthusiasts with its unique design and advanced features for its time. One of the key highlights of the Sunbeam S8 500 is its innovative overhead camshaft engine, which provided a smooth and powerful performance that set it apart from its competitors. The bike's distinctive styling, with its enclosed bodywork and shaft drive system, further added to its appeal and made it a standout in the market. Despite being over six decades old, the Sunbeam S8 500 remains a sought-after collector's item due to its rarity and historical significance. Its value lies not only in its mechanical prowess but also in its place in motorcycle history as a pioneering model that pushed the boundaries of design and technology. For motorcycle enthusiasts and collectors alike, the Sunbeam S8 500 represents a timeless piece of two-wheeled engineering that continues to be cherished and admired for its elegance and performance.

🎬 Video Reviews

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📷 Gallery

⚡ Key Specs

Displacement487.00 ccm (29.72 cubic inches)

Power24.00 HP (17.5 kW)) @ 6000 RPM

Weight187.0 kg (412.3 pounds)

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Sunbeam S8 500

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