NSU 601 OSB 1940 - Specifications & Review

Introducing the 1940 NSU 601 OSB, a classic gem from the renowned German manufacturer that perfectly embodies the spirit of pre-war sport motorcycles. As a significant player in the motorcycle market of its time, NSU focused on creating machines that offered both performance and reliability. The 601 OSB stands out with its distinctive design and engineering excellence, appealing to enthusiasts who value historical significance and the thrill of riding a piece of motorcycling heritage.

At the heart of the NSU 601 OSB is a robust 562cc single-cylinder, four-stroke engine that delivers a spirited 26 horsepower at 4,950 RPM. This powerplant, coupled with its lightweight chassis—tipping the scales at just 150 kg—ensures a lively riding experience that embodies the sport category it belongs to. The bike's bore and stroke measurements of 85 mm by 99 mm allow for a smooth power delivery, while the Amal carburettor enhances fuel efficiency and throttle response. Riders will appreciate the air-cooled system, which maintains optimal engine temperatures even during spirited rides, providing a perfect balance between performance and reliability.

The NSU 601 OSB is equipped with traditional drum brakes at both the front and rear, providing adequate stopping power for its era, while the kick starter adds a touch of vintage charm that enthusiasts adore. With dimensions measuring 2,200 mm in length and 1,000 mm in height, the motorcycle exudes a compact and agile silhouette, making it easy to maneuver through both city streets and winding roads. The bike’s power-to-weight ratio of 0.1733 HP/kg ensures an engaging ride, making it a delightful choice for those seeking both nostalgia and excitement.

PROs:

1. Classic Appeal: The NSU 601 OSB captures the essence of pre-war motorcycles, making it a prized collectible for enthusiasts.
2. Performance: With a powerful engine and lightweight design, it offers a spirited riding experience that’s both fun and engaging.
3. Simplicity and Reliability: The straightforward engineering and air-cooled system contribute to lower maintenance needs, appealing to riders who appreciate classic simplicity.

CONs:

1. Limited Braking Performance: The drum brakes, while adequate for the era, may feel less responsive compared to modern disc brakes, requiring cautious riding.
2. Kick Starter Only: The absence of an electric start might deter some riders who prefer the conveniences of contemporary motorcycles.
3. Comfort for Longer Rides: The sport-oriented design may sacrifice comfort for extended journeys, making it more suited for short, spirited rides than long-distance travel.

Overall, the 1940 NSU 601 OSB remains a fascinating blend of history, performance, and character, appealing to those who cherish the golden age of motorcycling.