What is the engine displacement of the 1919 Blackburne 4 HP?

The 1919 Blackburne 4 HP has an engine displacement of 499.0 ccm (30.45 cubic inches).

1919 Blackburne 4 HP Price, Specs, Review

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Review

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The 1919 Blackburne 4 HP represents a significant era in motorcycle history, showcasing the simplicity and ruggedness of early motorcycle engineering. Powered by a 499cc engine, this machine was designed for reliable transportation and exploration. While horsepower figures are not readily available, the engine would have provided sufficient power for the roads of the time. The Blackburne 4 HP is a testament to the pioneering spirit of early motorcycle manufacturers. This motorcycle would have been equipped with basic suspension and braking systems, reflecting the technological limitations of the era. Its upright riding position and simple controls would have provided a unique and engaging riding experience. The Blackburne 4 HP is a valuable piece of motorcycle history, offering a glimpse into the past of motorized transportation. For collectors and enthusiasts of vintage motorcycles, the 1919 Blackburne 4 HP is a rare and desirable find. It represents a time when motorcycles were more than just machines; they were symbols of freedom and adventure. Owning a Blackburne 4 HP is like owning a piece of history, a tangible link to the early days of motorcycling.

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Pros (Advantages)

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✅ Why buy this bike?

• Simple, robust single-cylinder engine design offers inherent reliability and ease of maintenance. • Low compression ratio and minimal moving parts contribute to excellent longevity for its era. • Exposed valve train and external flywheel simplify inspection and roadside repairs. • Lightweight design for its class, making it relatively agile and manageable on period roads. • The 499cc engine provides sufficient power for touring and sidecar operation of the time. • Blackburne engines were highly regarded for quality and performance in early motorcycle racing.

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Cons (Disadvantages)

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⚠️ Things to consider

• Lack of front suspension results in a harsh, fatiguing ride over anything but smooth surfaces. • Belt drive system is prone to slipping in wet conditions and requires frequent adjustment. • Minimal braking power, typically a rear rim or block brake, offers poor stopping capability. • No electric lighting or starting, relying on acetylene lamps and kick-starting, inconvenient at night. • Manual lubrication system requires constant attention to oil levels, easy to neglect and damage.

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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 499cc class: 45-60 mpg (4.0-5.5 L/100km)

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Insurance Class

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Insurance grouping for Blackburne 4 HP (499cc):

📋 Group 8-15 — mid-range

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Insurance Calculator (UK est.)

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Personalised premium estimate for the Blackburne 4 HP (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 Blackburne 4 HP 1919 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.

Blackburne 4 HP

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