Sunbeam S7 500 1956 - Specifications & Review

Introducing the 1956 Sunbeam S7 500

The 1956 Sunbeam S7 500 stands as a testament to the golden age of British motorcycling, blending classic aesthetics with practical sport-touring capabilities. Designed for the discerning rider, the S7 500 captures the essence of adventure while providing the comfort and reliability expected from a sport touring motorcycle. With its sleek lines and robust build, it offers a unique blend of elegance and performance, appealing to both collectors and enthusiasts alike. This motorcycle emerges from a time when craftsmanship and engineering excellence were paramount, making it a cherished piece of history on two wheels.

Engine Performance and Riding Characteristics

At the heart of the Sunbeam S7 500 lies a 487 cc twin, four-stroke engine that produces a spirited 24 horsepower at 5,800 RPM. This power is more than sufficient for the bike’s intended purpose, allowing riders to cruise comfortably at a top speed of 121 km/h (75.2 mph). The engine’s 6.5:1 compression ratio and a well-tuned carburettor ensure smooth acceleration and a satisfying throttle response. Riders will appreciate the bike’s oil and air cooling system, which effectively maintains optimal engine temperatures even on longer journeys. With a dry single-plate clutch and a shaft drive transmission, the S7 500 offers a smooth and hassle-free riding experience, making it equally suitable for city commuting or weekend excursions through winding country roads.

Key Features and Technology

The Sunbeam S7 500 is equipped with a sturdy twin cradle frame that provides excellent stability and handling, complemented by its telescopic front suspension and plungers at the rear. Both the front and rear utilize expanding drum brakes, ensuring reliable stopping power that is essential for spirited riding. Weighing in at 194 kg (427.7 pounds), the S7 500 boasts a respectable power-to-weight ratio of 0.1237 HP/kg, making it agile yet substantial on the road. The classic kick-starter adds an authentic touch to the bike’s vintage charm, while the option for a classic black or green finish enhances its visual appeal. This motorcycle is not just about getting from A to B; it embodies the freedom of the open road, offering a riding experience that is both engaging and exhilarating.

Pros and Cons

Pros:

1. Classic Design: The timeless aesthetics of the S7 500 make it a head-turner at any gathering.
2. Comfortable Riding Position: Ideal for long-distance touring, providing a relaxed posture for extended rides.
3. Smooth Power Delivery: The engine’s characteristics ensure a pleasant and responsive riding experience.

Cons:

1. Limited Power: With only 24 HP, it may not satisfy riders seeking high-performance capabilities.
2. Drum Brakes: While reliable, drum brakes can lack the stopping power and responsiveness of modern disc brakes.
3. Weight: At 194 kg, some riders may find it a bit heavy for maneuvering in tight spaces or during low-speed handling.

In summary, the 1956 Sunbeam S7 500 is a captivating motorcycle that harmonizes vintage charm with practical performance, making it a worthy addition to any enthusiast's collection.