The 1939 BMW R 51 reflects a period of significant advancement in motorcycle design. Its 494cc engine produces 24.1 horsepower at 5600 RPM, allowing it to reach a top speed of 140 km/h. The 4-speed gearbox offers a range of gearing options, and the 14-liter fuel tank provides sufficient range for longer rides.
The ergonomics of the R 51 would have been designed for both comfort and control. The cartridge front suspension helped to absorb bumps in the road, while the expanding drum brake provided the necessary stopping power. The riding position would have been relatively upright and neutral, suitable for a variety of riding styles.
This motorcycle was aimed at riders who sought a versatile and reliable machine. It would appeal to those interested in pre-war motorcycles and the history of BMW. The R 51 showcases the advancements in motorcycle technology leading up to World War II.
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