Sunbeam S7 De Luxe (1949)

ENGINE

Configuration: Air-cooled, tandem twin Valve-train: SOHC, four-valve Displacement: 487 cc

Bore x Stroke: 70 x 63.5 mm Compression ratio: 6.5:1

Fuelling: 15/16 -inch (24-mm) Amal Maximum Power: 25 PS at 5,800 rpm Maximum Torque: NA

Electrics: 6V, Lucas dynamo Transmission: Four-speed

CHASSIS

Type: Tubular steel twin cradle

Front suspension: Telescopic, no adjustment Rear suspension: Plunger

Front brake: 200-mm single-leading-shoe drum Rear brake: 200-mm single-leading-shoe drum Wheels (F/R): 16-inch, wire-spoke

Front Tyre: 4.50 x 16-inch Avon Speedmaster Rear Tyre: 4.75 x 16 -inch Avon Speedmaster Wheelbase: 1,422 mm

Seat height: 775 mm

Tank capacity: 16 litres

Weight: 198 kg (dry)