NSU 4PS 1922 - Specifications & Review

Introducing the 1922 NSU 4PS, a remarkable piece of motorcycle history that encapsulates the spirit of early 20th-century sport biking. As NSU's foray into the burgeoning motorcycle market, the 4PS was designed for enthusiasts who craved performance and style. With its sleek lines and classic design, this bike not only turned heads but also laid the groundwork for future innovations in the sport category. At a time when motorcycles were evolving from utilitarian machines to symbols of freedom and adventure, the NSU 4PS stood out as a testament to engineering prowess and design philosophy.

At the heart of the NSU 4PS lies a robust 498cc V2, four-stroke engine, delivering a respectable 6.5 horsepower at 3000 RPM. This power allows the 4PS to reach a top speed of 80 km/h (49.7 mph), making it a spirited ride for its era. The bike features a Pallas carburettor that ensures efficient fuel delivery, complemented by an air-cooling system that keeps the engine operating smoothly. The unique belt final drive system enhances the smoothness of the ride, allowing riders to enjoy the thrill of acceleration while maintaining control. The combination of the bike's lightweight frame—just 120 kg (264.6 lbs)—and its thoughtful engineering results in a nimble and responsive motorcycle, perfect for both city streets and country roads.

The NSU 4PS is not just about power; it's also about the rider experience. The steel frame adds durability while providing a solid foundation for the motorcycle's suspension system. With dimensions measuring 2,200 mm in length and a width of 840 mm, the 4PS strikes a balance between stability and maneuverability. The fuel capacity of 9 liters (2.38 gallons) ensures that riders can enjoy extended journeys without frequent stops for refueling. Dressed in classic black, the NSU 4PS exudes a timeless elegance, appealing to vintage motorcycle enthusiasts and collectors alike.

Pros:

1. Lightweight Construction: Weighing in at just 120 kg, the 4PS offers an agile riding experience, making it easy to handle and maneuver.
2. Classic Aesthetic: The sleek design and traditional black finish give this motorcycle a timeless charm that appeals to vintage bike lovers.
3. Solid Performance: With a top speed of 80 km/h, the 4PS delivers ample power for leisurely rides and spirited outings.

Cons:

1. Limited Power Output: At 6.5 HP, the engine may feel underpowered compared to modern motorcycles, which could limit performance for more aggressive riders.
2. Basic Suspension: The suspension system may not provide the level of comfort and performance found in contemporary bikes, especially on rougher terrains.
3. Fuel Efficiency: While the 9-liter tank offers decent capacity, the carburettor setup may not be as fuel-efficient as modern fuel injection systems, leading to more frequent refueling during longer trips.

The 1922 NSU 4PS is a charming ode to a bygone era of motorcycling, inviting enthusiasts to relish its blend of history, aesthetics, and performance. Whether you're a collector or a vintage motorcycle aficionado, the 4PS promises to deliver a ride that is both nostalgic and exhilarating.