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Sunbeam S7 500
1956 · Vintage
1956 · Vintage
The 1956 Sunbeam S7 500 represents the final iteration of a distinctive British motorcycle, concluding a lineage that began with the original S7 in 1946. This particular model, often referred to as the S7 Deluxe, refined the "fatty" aesthetic and shaft-drive design that set Sunbeam apart. In its era, the S7 500 found itself competing with established British marques offering more conventional chain-driven parallel twins, such as the Triumph Speed Twin and the BSA A7. It carved out a niche for riders seeking a smooth, somewhat quirky alternative to the more sporting machines of the time, emphasizing comfort and an almost automotive-like refinement over outright speed.
At the heart of the 1956 Sunbeam S7 500 lies a 487.00 ccm (29.72 cubic inches) engine, a parallel twin with an overhead cam design that was quite forward-thinking for its day. This engine produced a modest 24.00 HP (17.5 kW) at 5800 RPM, delivering power in a smooth, tractable manner rather than an aggressive surge. With this power output, the S7 500 achieved a top speed of 121.0 km/h (75.2 mph). Weighing in at 194.0 kg (427.7 pounds), the motorcycle's mass contributed to its stable road manners but meant acceleration was more leisurely compared to its lighter, sportier rivals. The shaft drive, a signature Sunbeam feature, eliminated chain maintenance and contributed to its quiet operation.
Riding the Sunbeam S7 500 is an experience characterized by its unique comfort and handling. Classified as a Vintage motorcycle, it offers an upright riding position, making it suitable for extended journeys without undue strain. The large, sprung saddle and well-placed handlebars contribute to a relaxed ergonomic package. Its relatively long wheelbase and substantial weight provide a planted feel, absorbing road imperfections with a gentle, unhurried demeanor. While not designed for aggressive cornering, its handling is predictable and stable, making it a pleasant machine for touring or leisurely rides on country roads. The shaft drive ensures a remarkably smooth power delivery to the rear wheel, free from the snatchiness often associated with chain drives.
The 1956 Sunbeam S7 500 was built for the discerning rider who valued smoothness, reliability, and a distinctive character above outright performance. Its target audience consisted of individuals seeking a comfortable touring machine or a stylish weekend cruiser rather than a racer. Today, it appeals to collectors and enthusiasts of Vintage motorcycles who appreciate its engineering innovations, unique aesthetics, and the relaxed riding experience it provides. It's a machine for those who enjoy the journey as much as the destination, a piece of British motorcycling history that stands as an example of thoughtful, if sometimes unconventional, design.
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The Sunbeam S7 500 produces 24 HP, fitting A2 license limits (max 35 kW / 47 HP). For riders 18+.
Estimated average for 487cc class: 45-60 mpg (4.0-5.5 L/100km)
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