What is the engine displacement of the BSA ?

The BSA has an engine displacement of 499.0 ccm (30.45 cubic inches).

How much horsepower does the BSA have?

The BSA produces 33.5 HP (24.5 kW )) @ 6200 RPM of power.

What is the top speed of the BSA ?

The BSA has a top speed of 136.8 km/h (85.0 mph).

How much does the BSA weigh?

The BSA has a dry weight of 140.6 kg (310.0 pounds).

What is the seat height of the BSA ?

The BSA has a seat height of 813 mm (32.0 inches) If adjustable, lowest setting..

BSA Price, Specs, Review

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Review

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The 1971 BSA B50SS is a classic British thumper, known for its distinctive single-cylinder character and robust performance. Its 499cc engine delivers a respectable 33.5 horsepower at 6200 rpm and 28 ft-lbs of torque at 5000 rpm, providing a lively and engaging riding experience. With a top speed of around 85 mph, the B50SS is capable of handling both city streets and open roads. The bike's 310-pound weight contributes to its nimble handling, while the telescopic front suspension helps to smooth out bumps in the road. The B50SS features a seat height of 32 inches, making it accessible to a wide range of riders. The ergonomics are typical of classic British motorcycles, with an upright riding position that promotes comfort and control. The expanding brake (drum brake) on the front wheel provides adequate stopping power for its performance capabilities. This motorcycle is aimed at riders who appreciate the unique character of single-cylinder engines and seek a classic, engaging riding experience. Overall, the 1971 BSA B50SS is a well-rounded classic that offers a blend of performance, handling, and distinctive styling. Its powerful single-cylinder engine, lightweight design, and comfortable ergonomics make it an appealing choice for riders who appreciate the charm and character of vintage British motorcycles.

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Pros (Advantages)

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✅ Why buy this bike?

• Classic British single-cylinder thump offers an authentic vintage riding experience. • Relatively simple mechanics make home maintenance and repairs feasible for enthusiasts. • Excellent fuel economy for its era, making it a practical choice for daily commuting. • Lightweight and nimble chassis provides agile handling, especially in urban environments. • Strong community support and parts availability for restoration and ongoing upkeep. • Distinctive exhaust note and aesthetic appeal turn heads wherever it goes.

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Cons (Disadvantages)

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⚠️ Things to consider

• Vibration levels can be significant, leading to rider fatigue on longer journeys. • Lower power output compared to modern bikes, limiting highway performance. • Electrical systems can be temperamental, requiring frequent attention and upgrades. • Drum brakes offer less stopping power than disc brakes, demanding more foresight. • Kickstarting can be challenging for beginners, requiring a specific technique.

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License Class (EU)

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The BSA produces 34 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 499cc class: 45-60 mpg (4.0-5.5 L/100km)

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Insurance Class

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Insurance grouping for BSA (499cc):