Sunbeam S7500: history, specs, pictures

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Sunbeam S7500
Manufacturer
Also called S7 500
Production 1946 - 1956
Engine
twin, four-stroke
Bore / Stroke 70.0mm x 63.5mm
Top Speed 75 mph (121 km/h)
Horsepower 23.47 HP (17.5 KW) @ 5800RPM
Fuel System carburetor
Transmission Final Drive: shaft drive (cardan)
Clutch: dry singleplate
Suspension Front: telescopic
Rear: plungers
Brakes Front: expanding brake (drum brake)
Rear: expanding brake (drum brake)
Front Tire 4.50-16
Rear Tire 4.50-16
Wheelbase 55.12 inches (1400 mm)
Weight 427.7 pounds (194.0 Kg) (dry),
Manuals Service Manual


The Sunbeam S7500 was a twin, four-stroke standard produced by Sunbeam between 1946 and 1956. It could reach a top speed of 75 mph (121 km/h). Claimed horsepower was 23.47 HP (17.5 KW) @ 5800 RPM.

Engine[edit | edit source]

The engine was a oil & air cooled twin, four-stroke. A 70.0mm bore x 63.5mm stroke result in a displacement of just 487.0 cubic centimeters. Fuel was supplied via a overhead cams (ohc).

Drive[edit | edit source]

Power was moderated via the dry singleplate.

Chassis[edit | edit source]

It came with a 4.50-16 front tire and a 4.50-16 rear tire. Stopping was achieved via expanding brake (drum brake) in the front and a expanding brake (drum brake) in the rear. The front suspension was a telescopic while the rear was equipped with a plungers. The bike weighed just 427.7 pounds (194.0 Kg). The wheelbase was 55.12 inches (1400 mm) long.