Ariel 4G Square Four 1000 1946 - Specifications & Review

Introducing the 1946 Ariel 4G Square Four 1000, a remarkable piece of motorcycling history that perfectly encapsulates the spirit of post-war innovation. Known affectionately as the “Squariel,” this motorcycle stands out in the crowded allround category with its unique square four-cylinder engine design, a brainchild of the legendary Edward Turner. With a blend of classic styling and solid engineering, the 4G Square Four appeals to both collectors and riding enthusiasts seeking a vintage machine that delivers on both performance and character.

At the heart of the 4G Square Four is its impressive 995cc square four-cylinder engine, which produces a respectable 35 horsepower at 5,500 RPM. This powerplant allows riders to reach a top speed of 140 km/h (87 mph), making it a formidable contender on the open road. The engine's 6.0:1 compression ratio and efficient SU MC2 carburettor fuel system work in harmony to deliver smooth acceleration and reliable performance. Coupled with a 4-speed gearbox and chain final drive, the riding experience is both engaging and exhilarating, whether you're navigating city streets or cruising along country lanes.

The Ariel 4G Square Four is not just about the engine; it boasts a sturdy tubular single-loop frame that supports a comfortable ride, enhanced by its telescopic front fork and plunger-link rear suspension. The bike is equipped with solid drum brakes, offering adequate stopping power for its time, and a generous fuel capacity of 23 liters (6.08 gallons) ensures fewer stops on long rides. With a classic aesthetic, the vibrant red color option captures attention, while the kick starter adds a touch of nostalgia that many enthusiasts appreciate.

Pros:

1. Unique Engine Design: The square four-cylinder engine not only provides distinctive performance but also sets the bike apart visually.
2. Comfortable Riding Experience: With its robust chassis and effective suspension, the 4G Square Four offers a smooth ride, making it suitable for both short jaunts and long-distance travel.
3. Iconic Styling: The vintage design and rich history of the Ariel brand make this motorcycle a coveted piece for collectors and enthusiasts alike.

Cons:

1. Weight: At 211 kg (465.2 pounds), the bike may feel heavy for some riders, especially at low speeds or during maneuvering.
2. Drum Brakes: While functional, the drum brakes may not offer the same level of performance or responsiveness as modern disc brakes, which could be a concern for more aggressive riding.
3. Maintenance: As a vintage motorcycle, finding replacement parts and keeping up with maintenance may require a bit more effort and knowledge compared to contemporary models.

In summary, the 1946 Ariel 4G Square Four 1000 is more than just a motorcycle; it’s a celebration of engineering ingenuity and a testament to the era that birthed it. Whether you’re a seasoned rider or a newcomer to the world of classic bikes, this machine promises an experience steeped in history, performance, and style.