Sunbeam S7 500 1953 - Specifications & Review

The 1953 Sunbeam S7 500 stands as a hallmark of British engineering, striking a perfect balance between elegance and performance in the sport touring category. With its sleek lines and distinctive styling, the S7 500 was designed to appeal to riders who sought both comfort on long journeys and the thrill of spirited riding. As one of the few models produced during a time of post-war recovery, the S7 500 showcases Sunbeam's commitment to craftsmanship, making it a cherished classic among motorcycle enthusiasts and collectors alike.

At the heart of the S7 500 lies a robust 487cc twin, four-stroke engine that delivers an impressive 24 horsepower at 5800 RPM. This powerplant enables the motorcycle to reach a respectable top speed of 121 km/h (75.2 mph), making it more than capable of highway cruising. The engine's 6.5:1 compression ratio and its carburettor fuel system ensure a smooth and responsive riding experience, while the oil and air cooling system maintains optimal performance even during extended rides. With a dry single-plate clutch and a reliable shaft drive (cardan) transmission, the S7 500 provides a seamless power delivery that instills confidence in riders, whether navigating city streets or open roads.

What truly sets the Sunbeam S7 500 apart is its thoughtful engineering and design. The twin cradle frame offers a sturdy foundation, paired with a telescopic front suspension for enhanced handling and comfort. The motorcycle's braking system, featuring expanding drum brakes at both the front and rear, provides reliable stopping power, while the plungers at the rear suspension contribute to a smooth ride, absorbing bumps and imperfections along the way. With its classic black and green color options, the S7 500 exudes a timeless charm that harks back to an era when motorcycles were not just machines, but works of art.

Pros:

1. Classic Styling: The S7 500’s elegant design and rich heritage make it a standout in the classic motorcycle community.
2. Comfortable Ride: With its capable suspension and relaxed riding position, this motorcycle is well-suited for long-distance touring.
3. Reliable Performance: The combined engineering of the engine and shaft drive ensures a dependable and enjoyable riding experience.

Cons:

1. Limited Power: While adequate for touring, the 24 HP output may feel underpowered for more aggressive riders seeking high performance.
2. Weight Consideration: At 194 kg (427.7 pounds), the S7 500 may not be the lightest option, which could affect maneuverability for some riders.
3. Maintenance Needs: Being a vintage motorcycle, it may require more frequent maintenance and parts sourcing than modern models.

In summary, the 1953 Sunbeam S7 500 is more than just a motorcycle; it’s a piece of history, offering a unique blend of performance, style, and character that continues to captivate riders today.