NSU Neckarsulmer 4PS 1906 - Specifications & Review

Introducing the 1906 NSU Neckarsulmer 4PS, a remarkable piece of motorcycling history that embodies the spirit of early 20th-century innovation and performance. As one of the pioneering sport motorcycles, the Neckarsulmer 4PS was designed to cater to the burgeoning demand for speed and excitement among riders. With its sleek lines and robust construction, it positioned itself as a lightweight competitor in the emerging sport category, captivating enthusiasts with its blend of engineering excellence and aesthetic charm.

At the heart of the NSU Neckarsulmer 4PS lies a single-cylinder, four-stroke engine with a displacement of 482.00 ccm (29.41 cubic inches), generating a respectable 4.00 HP at 4200 RPM. This power translates to a top speed of 70.0 km/h (43.5 mph), a thrilling feat for its time. The engine’s bore and stroke measure equally at 85.0 mm, allowing for a balanced performance that enhances the riding experience. The liquid-cooled system ensures consistent performance, while the carburettor fuel system optimizes fuel delivery for that exhilarating burst of speed. With a weight of just 80.0 kg (176.4 pounds), the Neckarsulmer 4PS offers an impressive power-to-weight ratio, making it agile and responsive on the road.

The design of the NSU Neckarsulmer 4PS is a testament to early motorcycle engineering, featuring a durable steel tube frame that provides both strength and stability. Its belt final drive system not only contributes to its lightweight profile but also offers smooth power transfer, enhancing the overall riding dynamics. The motorcycle boasts a fuel capacity of 9.00 litres (2.38 gallons), allowing for extended rides without frequent stops, making it an appealing option for those seeking adventure. This blend of innovative engineering and classic design is sure to resonate with both collectors and riding enthusiasts who appreciate the rich heritage of motorcycling.

Pros:

1. Lightweight and Agile: With a weight of only 80 kg, the Neckarsulmer 4PS is easy to handle and maneuver, perfect for both novice and experienced riders.
2. Historical Significance: As one of the early sport motorcycles, it offers a unique glimpse into the evolution of motorcycle design and performance.
3. Solid Power-to-Weight Ratio: The 4 HP engine provides a commendable performance for its size, allowing for spirited rides on open roads.

Cons:

1. Limited Top Speed: While 70 km/h is impressive for its era, modern riders might find this speed less thrilling compared to contemporary motorcycles.
2. Basic Technology: The absence of advanced features such as modern suspension and braking systems may limit riding comfort and safety.
3. Maintenance Needs: As with many vintage motorcycles, finding parts and performing maintenance may pose challenges for owners.

The 1906 NSU Neckarsulmer 4PS stands as a testament to the ingenuity of its time, combining historical charm with spirited performance, making it a coveted piece for any motorcycle enthusiast.