Harley-Davidson S-125 1951 - Specifications & Review

1951 Harley-Davidson S-125: A Classic Allrounder

The 1951 Harley-Davidson S-125 represents a pivotal moment in Harley's storied lineage, as it caters to the emerging market for lightweight motorcycles during the post-war era. Positioned as an allround motorcycle, the S-125 was designed to be versatile, appealing to both novice riders and seasoned enthusiasts alike. Its compact frame and approachable design make it a nostalgic nod to the simpler times of motorbiking, while still delivering the rugged reliability associated with the Harley-Davidson brand. With its vintage aesthetics, this model has become a sought-after classic for collectors and riders who appreciate the charm of mid-century motorcycles.

At the heart of the S-125 lies a 165cc single-cylinder, two-stroke engine that exemplifies the spirit of its time. This spirited powerplant may not boast the displacement of its larger siblings, but it delivers a peppy performance that is perfect for urban commuting or weekend rides through winding country roads. The carburettor-fed engine, paired with a chain final drive, provides a raw and engaging riding experience, allowing the rider to fully connect with the machine. The lightweight build, tipping the scales at just 90.7 kg (200 pounds), ensures nimble handling, making it an ideal choice for those who crave agility and responsiveness in their ride.

The S-125 is equipped with features that enhance its functionality and reliability. The front and rear are fitted with expanding drum brakes, offering sufficient stopping power for everyday riding. Its unique girder fork coil spring front suspension adds a touch of engineering innovation, providing stability and comfort even on less-than-perfect roads. The rear suspension is rigid, which contributes to the bike's classic feel and straightforward maintenance. Overall, the design is a testament to Harley’s commitment to creating motorcycles that blend practicality with a sense of nostalgia.

Pros:

1. Lightweight and Agile: At just 90.7 kg, the S-125 offers excellent maneuverability, making it ideal for both city riding and twisty backroads.
2. Classic Aesthetic: The vintage styling is a major draw for enthusiasts, providing that timeless Harley-Davidson charm that stands out in any setting.
3. Simplicity of Maintenance: The straightforward mechanics and two-stroke engine design make it easy for owners to perform maintenance and repairs.

Cons:

1. Limited Power Output: The small 165cc engine may not satisfy riders looking for faster acceleration or higher top speeds.
2. Rigid Rear Suspension: While it contributes to the classic feel, the lack of rear suspension can lead to a harsher ride on bumpy surfaces.
3. Basic Features: Compared to modern motorcycles, the S-125 lacks advanced technology and features, which may deter riders accustomed to contemporary conveniences.

In summary, the 1951 Harley-Davidson S-125 is not just a motorcycle; it’s a piece of history that captures the spirit of an era when freedom on two wheels was a cherished pursuit. Whether you're a collector aiming to restore a piece of Americana or a rider looking for a unique experience, the S-125 promises a delightful journey through time.