What is the engine displacement of the 1937 BSA Y 13?

The 1937 BSA Y 13 has an engine displacement of 748.0 ccm (45.64 cubic inches).

How much horsepower does the 1937 BSA Y 13 have?

The 1937 BSA Y 13 produces 19.5 HP (14.2 kW )) @ 4800 RPM of power.

1937 BSA Y 13 Price, Specs, Review

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Review

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The 1937 BSA Y13 is a motorcycle that transports you back to a different era of motorcycling. Powered by a 748cc single-cylinder engine producing 19.5 horsepower at 4800 RPM, it prioritizes reliability and torque over outright speed. The 17-liter fuel tank is well-suited for long journeys, a necessity for riders of the time. The quick adjustable shock-steering damper is a primitive, but effective, suspension system designed to improve handling on challenging roads. The riding position is upright and commanding, typical of motorcycles from this period. The seat is designed for comfort over long distances, though it lacks the modern refinements. The drum brake requires a deliberate approach, demanding anticipation and careful modulation. The BSA Y13 is a motorcycle for the history buff and the vintage enthusiast. It's a machine that requires mechanical understanding and a deep appreciation for the past. It's not about chasing lap times, but about experiencing the journey and connecting with the roots of motorcycling.

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Pros (Advantages)

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✅ Why buy this bike?

• Robust side-valve V-twin engine offered ample low-end torque for touring and sidecar duty. • Reliable and relatively simple mechanicals made field repairs feasible for the mechanically inclined. • Classic pre-war British styling with a distinctive V-twin rumble, highly desirable for collectors. • Solid build quality and durable components ensured a long service life if properly maintained. • Comfortable riding position and sprung saddle made longer journeys more tolerable than many contemporaries.

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Cons (Disadvantages)

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⚠️ Things to consider

• Limited top speed and acceleration due to side-valve design, outclassed by overhead valve rivals. • Heavy and cumbersome to maneuver at low speeds, especially without a sidecar attached. • Braking performance was rudimentary by modern standards, requiring significant foresight and planning. • Lack of rear suspension made for a harsh ride on anything but perfectly smooth roads. • Electrical system was basic 6-volt, often unreliable, and struggled with modern accessory demands.

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License Class (EU)

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The BSA Y 13 produces 20 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 748cc class: 35-50 mpg (5.0-7.0 L/100km)

⛽ Tank: 17.00 litres (4.49 US gallons)

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Insurance Class

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