Attribute | ![]() Sunbeam S8 500 1956 × | ![]() Bridgestone 350 GTO 1967 × |
---|---|---|
General | ||
Production from (year) | 1956 | 1967 |
Make | Sunbeam | Bridgestone |
Model | Sunbeam S8 500 | Bridgestone 350 GTO |
Category | Sport touring | Allround |
Engine and transmission | ||
Engine type | Twin, four-stroke | Twin, two-stroke |
Fuel system | Carburettor | Carburettor. Amal |
Displacement (cm³) | 487 | 350 |
Power (kw) | 17.5 | 29.2 |
Cooling system | Oil & air | Air |
Transmission type,final drive | Shaft drive (cardan) | Chain |
Bore (mm) | 70 | 61 |
Stroke (mm) | 63.5 | 59 |
Fuel control | Single Overhead Cams (SOHC) | Rotary valves |
Ignition | - | Battery-coil |
Clutch | Dry singleplate | Dry multiplate |
Lubrication system | Wet sump | - |
Compression | 6.5:1 | 9.3:1 |
Chassis | ||
Front suspension | Telescopic | Telescopic |
Rear suspension | Plungers | Swingarm |
Front brakes | Expanding brake (drum brake) | - |
Rear brakes | Expanding brake (drum brake) | - |
Frame type | Twin cradle | - |
Front tyre | - | 3.25-19 |
Rear tyre | - | 3.25-19 |
Seat | Two single seats | Dual |
Wheels | Spoked | Spoked |
Other | ||
Starter | - | Kick |
Dimensions | ||
Wheelbase (mm) | 1,400 | 1,372 |
Performance | ||
Fuel capacity (l) | - | 14.38 |