These are the known mechanical and performance specifications for your 1954 Sunbeam S8 500.
Basic Specs
Engine
Displacement487.00 ccm (29.72 cubic inches)
Type
DetailsTwin, four-stroke
Max RPM
Compression6.5:1
Bore/Stroke70.0 x 63.5 mm (2.8 x 2.5 inches)
Valves/Cylinder
FuelingCarburettor
Ignition
Exhaust
LubricationWet sump
CoolingOil & air
Drivetrain
Gearbox
Final DriveShaft drive (cardan)
ClutchDry singleplate
Driveline
Performance
Horespower24.00 HP (17.5 kW)
Torque
Top Speed120.0 km/h (74.6 mph)
Chassis
Frame TypeTwin cradle
Rake
Trail
Front SuspensionTelescopic
Front Travel
Rear SuspensionPlungers
Rear Travel
SeatTwo single seats
Seat Height
Alt. Seat Height
Total Height
Total Length
Total Width
Ground Clearance
Wheelbase1,400 mm (55.1 inches)
Dry Weight187.0 kg (412.3 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre
Rear Tire/Tyre
Front BrakesExpanding brake (drum brake)
Front Brake Diameter
Rear BrakesExpanding brake (drum brake)
Rear Brake Diameter
WheelsSpoked
Comments