NSU 251 OSL WH 1940 - Specifications & Review

Introducing the 1940 NSU 251 OSL WH, a classic motorcycle that embodies the spirit of pre-war German engineering. Renowned for its versatility and reliability, the NSU 251 OSL WH is positioned as an allrounder, making it a popular choice for both daily commuting and weekend excursions. With its distinctive design and robust build, this motorcycle not only captures the nostalgia of its era but also attracts modern enthusiasts who appreciate vintage craftsmanship. Its unique blend of performance and practicality allows riders to experience the joy of motorcycling in a way that few machines from this period can replicate.

At the heart of the NSU 251 OSL WH is a spirited single-cylinder, four-stroke engine that displaces 242 cc, generating a respectable 10.5 horsepower at 5,300 RPM. This power translates into a top speed of 95 km/h (59 mph), making it nimble enough for city streets while still capable of open-road adventures. Riders will appreciate the smooth delivery of power, thanks to the air-cooled design and the Amal carburettor, which ensures a consistent fuel flow. The motorcycle's lightweight frame, weighing in at just 144 kg (317.5 pounds), combined with its efficient power-to-weight ratio of 0.0729 HP/kg, offers an agile and responsive ride, allowing for confident maneuverability in various conditions.

The 251 OSL WH is equipped with features that reflect the technological advancements of its time. The steel frame provides a sturdy foundation, while the drum brakes—both front and rear—offer reliable stopping power, critical for the safety of any rider. The motorcycle’s classic aesthetics are complemented by its functional design, with a fuel capacity of 11 liters ensuring that riders can cover significant distances without the need for frequent stops. The kick starter adds a touch of authenticity and simplicity, appealing to those who enjoy the hands-on experience of starting a vintage machine.

Pros:

1. Classic Design: The NSU 251 OSL WH boasts a timeless aesthetic that appeals to vintage motorcycle enthusiasts and collectors alike.
2. Good Performance: With 10.5 HP and a top speed of 95 km/h, this motorcycle strikes a balance between performance and practicality, suitable for various riding conditions.
3. Lightweight and Nimble: Weighing only 144 kg, this bike is easy to handle, making it accessible for riders of different skill levels.

Cons:

1. Limited Power Output: While adequate for casual riding, the engine's power may feel underwhelming for those seeking thrilling performance.
2. Drum Brakes: The expanding drum brake system, while reliable for its time, does not offer the stopping power or responsiveness that modern disc brakes provide.
3. Kick Starter Only: The absence of an electric starter may deter some riders who prefer the convenience of modern starting systems, especially in colder conditions.

The 1940 NSU 251 OSL WH is not just a motorcycle; it's a piece of history, connecting riders with the rich legacy of German engineering while offering a delightful riding experience that stands the test of time.