Sunbeam S8 500 (1949-56)
Comparison technical specifications
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| Make: | Sunbeam |
| Model: | S8 500 |
| Years: | 1949-56 |
| Production: | 8 530 units |
| Engine: | Parallel twin, SOHC |
| Capacity: | 487 cc / 29.7 cu in |
| Bore x Stroke: | 70 x 63.5 mm |
| Compression Ratio: | 6.5:1 |
| Cooling System: | Air/Oil cooled |
| Lubrication: | Wet sump |
| Starting: | Kick |
| Electrical system: | 6V |
| Max Power: | 18.6 kW / 25 hp @ 6000 rpm |
| Clutch: | Single plate, dry |
| Transmission: | 4-Speed |
| Final Drive: | Shaft |
| Frame: | Twin cradle, steel |
| Front Suspension: | Telescopic, one way damped |
| Rear Suspension: | Plunger, spring loaded saddle |
| Front Brakes: | Drum, leading shoe, 203 mm / 8" |
| Rear Brakes: | Drum, leading shoe, 203 mm / 8" |
| Wheel, Front: | 4.50 x 16" |
| Wheel, Rear: | 4.75 x 16" |
| Tyres, Front: | 4JA x 16" |
| Tyres, Rear: | 43A x 16" |
| Wheelbase: | 1400 mm / 57" |
| Dry Weight: | 187 kg / 413 lbs |
| Top Speed: | 121 km/h / 75 mph |
| Source: | Sump Publishing |