What is the engine displacement of the 1928 BMW R 42?

The 1928 BMW R 42 has an engine displacement of 494.0 ccm (30.14 cubic inches).

How much horsepower does the 1928 BMW R 42 have?

The 1928 BMW R 42 produces 12.0 HP (8.7 kW )) @ 3400 RPM of power.

What is the top speed of the 1928 BMW R 42?

The 1928 BMW R 42 has a top speed of 95.0 km/h (59.0 mph).

1928 BMW R 42 Price, Specs, Review

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Review

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The 1928 BMW R 42 offered a slightly larger engine displacement at 494cc, producing 12 horsepower at 3400 RPM. This allowed for a top speed of 95 km/h, suitable for the road conditions of the late 1920s. Paired with a 3-speed gearbox, the engine character would likely emphasize low-end torque, making it practical for navigating varied terrain. The R 42, designed for utility, provided a straightforward riding experience. The ergonomics of the R 42 prioritized functionality, with an upright riding position to enhance visibility and control. The leading link front suspension aimed to improve ride comfort compared to earlier designs, while the expanding drum brake offered the standard braking technology of the time. These features would have made the R 42 a reasonably comfortable and manageable ride for its era. Designed for practical transportation, the 1928 BMW R 42 appealed to riders who needed a dependable machine. Its robust engine and simple controls would have been attractive to those seeking a workhorse motorcycle. This machine represents the early days of BMW's commitment to engineering reliable and functional motorcycles for a broad audience.

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Pros (Advantages)

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✅ Why buy this bike?

• Shaft drive offered unparalleled reliability and cleanliness compared to chain-driven contemporaries. • Horizontally opposed twin-cylinder engine provided excellent balance and low center of gravity for handling. • BMW's reputation for engineering quality meant a durable and well-built motorcycle for the era. • Enclosed drivetrain components were well-protected from dirt and wear, extending service intervals. • Advanced for its time, incorporating features like a hand gear shift and foot clutch for rider convenience.

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Cons (Disadvantages)

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⚠️ Things to consider

• Relatively heavy for a 500cc motorcycle, impacting agility and initial acceleration. • Limited power output (12 hp) meant slower top speeds and less brisk overtaking capabilities. • Rigid rear frame offered a less comfortable ride over rough terrain compared to sprung designs. • Drum brakes on both wheels provided adequate stopping but lacked modern braking power and feel. • Parts availability for a nearly 100-year-old model can be extremely challenging and expensive.

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License Class (EU)

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The BMW R 42 produces 12 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 494cc class: 45-60 mpg (4.0-5.5 L/100km)

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Insurance Class

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Insurance grouping for BMW R 42 (494cc):