Simplex Automatic 1951 - Specifications & Review

1951 Simplex Automatic: A Classic All-Rounder

Step back in time to 1951, a year when the motorcycle landscape was rich with innovation and style, and meet the Simplex Automatic—a charming example of American ingenuity. Positioned as an all-round motorcycle, the Simplex Automatic was designed for both the daily commuter and the weekend adventurer. With its distinctive features and retro aesthetics, this bike captures the spirit of the era, appealing to enthusiasts looking for a unique blend of practicality and vintage flair. Lightweight and nimble, it was crafted to navigate city streets and open roads with equal ease, making it a versatile choice for riders of all skill levels.

At the heart of the Simplex Automatic lies a spirited single-cylinder, two-stroke engine boasting a displacement of 130 cc. Generating a modest 4 HP at 4000 RPM, this powerplant delivers a surprisingly lively performance for its size, providing just enough zip to make urban commuting enjoyable. With a compression ratio of 6.5:1, the engine is designed for efficiency and reliability, while the belt final drive ensures smooth power delivery and low maintenance. Riders will appreciate the engaging experience that accompanies each twist of the throttle, as the bike glides effortlessly through traffic and along winding roads.

The engineering behind the Simplex Automatic showcases thoughtful design and practical features. Its duplex loop frame contributes to a lightweight construction, tipping the scales at just 61.2 kg (135 pounds), making it an agile companion on the road. The front suspension, featuring short rocker arms and dual coil springs, absorbs bumps with ease, providing a comfortable ride even on less-than-perfect surfaces. With a fuel capacity of 9.46 liters (2.5 gallons), this motorcycle offers decent range for its class, allowing riders to explore further without frequent stops. The magneto ignition system enhances reliability, ensuring that the engine starts with confidence every time.

Pros and Cons of the 1951 Simplex Automatic

Pros:

1. Lightweight and Nimble: At just 61.2 kg, the Simplex Automatic is easy to handle, making it perfect for both new and experienced riders.
2. Classic Design: Its vintage aesthetic and unique features appeal to motorcycle enthusiasts and collectors alike, making it a standout in any garage.
3. Efficient Engine: The simple yet effective two-stroke engine provides a lively ride while maintaining fuel efficiency for cost-effective commuting.

Cons:

1. Limited Power Output: With only 4 HP, the bike may struggle to keep up with faster traffic or steeper inclines, limiting its versatility for some riders.
2. Rigid Rear Suspension: The lack of rear suspension may result in a less comfortable ride on rough terrains compared to more modern bikes equipped with advanced suspension systems.
3. Basic Features: While charming, the minimalist design may lack some modern conveniences and technologies found in newer motorcycles, which could be a drawback for those seeking added comfort and performance.

In summary, the 1951 Simplex Automatic is not just a motorcycle; it’s a slice of history that embodies the spirit of its time. With its engaging ride and classic design, it continues to attract those who appreciate the art of motorcycling in its purest form.