NSU 501 OSL 1937 - Specifications & Review

Introducing the 1937 NSU 501 OSL: A Timeless Sport Classic

The 1937 NSU 501 OSL is a remarkable motorcycle that stands as a testament to the engineering prowess of its time. Nestled in the sport category, this bike was designed to cater to the enthusiastic riders of the late 1930s, who sought both performance and style. As NSU’s commitment to innovation shone through, the 501 OSL emerged as a popular choice among motorcycle aficionados, embodying a perfect blend of power and elegance that made it a formidable contender on both the streets and the race tracks.

At the heart of the NSU 501 OSL is its robust single-cylinder, four-stroke engine, boasting a displacement of 494cc. This powerplant delivers an impressive 22 horsepower at 5150 RPM, allowing the motorcycle to reach a top speed of 130 km/h (80.8 mph). The combination of its 80mm bore and 99mm stroke creates a delightful harmony of torque and responsiveness, making for an exhilarating riding experience. Whether navigating winding roads or cruising along open highways, the 501 OSL offers a smooth and engaging ride, enhanced by its air-cooled design that maintains optimal temperature during spirited outings.

The NSU 501 OSL is not just about performance; it also features a well-thought-out design that incorporates essential technology of its era. The sturdy steel frame provides stability and confidence, while the dual expanding drum brakes—both front and rear—ensure reliable stopping power. With a weight of 150 kg (330.7 pounds) and a power-to-weight ratio of 0.1467 HP/kg, the motorcycle offers a nimble feel, making it accessible for riders of varying skill levels. The bike’s 12.30-litre fuel tank is a practical touch, allowing for longer rides without frequent stops, while the classic kick starter adds a nostalgic charm to the riding experience.

Pros and Cons of the 1937 NSU 501 OSL

Pros:

1. Classic Performance: With a top speed of 130 km/h and a responsive engine, the 501 OSL is a thrilling ride for sport enthusiasts.
2. Timeless Design: Its steel frame and classic styling resonate with vintage motorcycle lovers, making it a prized possession.
3. User-friendly Handling: Lightweight yet powerful, this motorcycle is approachable for both novice and experienced riders.

Cons:

1. Limited Technology: As a motorcycle from the late 1930s, it lacks modern features such as disc brakes and electronic fuel injection.
2. Kick Start Only: The absence of an electric start can be a drawback for some riders, especially in colder conditions.
3. Maintenance Needs: Being an older model, it may require more frequent maintenance and specialized parts, which can be challenging to source.

In summary, the 1937 NSU 501 OSL not only represents a significant chapter in motorcycle history but also continues to captivate enthusiasts with its unique blend of performance, style, and character. Whether you're a collector or an avid rider, this classic machine invites you to experience the thrill of two-wheeled adventure in a truly authentic way.