Simplex Automatic 1952 - Specifications & Review

1952 Simplex Automatic: A Classic Gem of the Allround Motorcycle Category

The 1952 Simplex Automatic is a remarkable piece of automotive history, embodying the spirit of mid-20th-century motorcycle design. Emerging during a time when American riders sought practicality and reliability in their machines, the Simplex Automatic carved out a niche for itself as an allround motorcycle that could seamlessly blend into daily life while delivering a touch of adventure. With its lightweight frame and user-friendly design, this motorcycle became a popular choice for both commuting and leisurely rides, appealing to a broad spectrum of enthusiasts.

At the heart of the Simplex Automatic lies a spirited single-cylinder, two-stroke engine, boasting a displacement of 130cc. With a modest power output of 4 HP at 4000 RPM, this engine showcases the ideal balance of efficiency and performance for urban cruising. The 6.5:1 compression ratio ensures that every ounce of fuel is utilized effectively, allowing riders to navigate city streets with ease. The simple yet effective carburettor and magneto ignition system enhance reliability, while the belt final drive provides a smooth and maintenance-friendly experience. Riders will appreciate the nimble handling characteristics that come from the motorcycle's lightweight construction, tipping the scales at a mere 61.2 kg (135 pounds). This low weight, combined with a power-to-weight ratio of 0.0653 HP/kg, ensures that the Simplex Automatic offers a lively ride, making it perfect for both new riders and seasoned enthusiasts looking for a classic ride.

In terms of features, the Simplex Automatic is equipped with a duplex loop frame that not only enhances rigidity but also contributes to its vintage aesthetic charm. The front suspension, utilizing short rocker arms and two coil springs, offers a surprisingly comfortable ride for its era, while the rigid rear suspension provides stability and simplicity. With a fuel capacity of 9.46 liters (2.5 gallons), this bike is designed for longer rides without constant refueling stops, making it an ideal companion for weekend getaways. Its straightforward design philosophy emphasizes ease of use, making it a beloved choice among collectors and casual riders alike.

Pros:

1. Lightweight and Maneuverable: Weighing only 61.2 kg, the Simplex Automatic is easy to handle, perfect for both novice and experienced riders.
2. Reliable Engine Performance: The simple two-stroke engine provides sufficient power for city commuting while ensuring low maintenance needs.
3. Classic Aesthetic: The vintage styling and unique frame design make it a standout piece in any motorcycle collection.

Cons:

1. Limited Power: With just 4 HP, the motorcycle may struggle on highways or steep inclines, making it less suitable for long-distance travel.
2. Rigid Rear Suspension: While it adds to the bike's simplicity, the rigid rear can lead to a stiffer ride on uneven surfaces.
3. Basic Features: Lacking modern conveniences, such as advanced suspension systems or electronic ignition, the Simplex Automatic may not appeal to those seeking a more contemporary riding experience.

In summary, the 1952 Simplex Automatic represents an enchanting blend of simplicity, style, and practicality, making it a cherished icon among motorcycle enthusiasts and collectors alike.