Sunbeam Model 3 (1915-26) vs Sunbeam S8 500 (1949-56)
Comparison technical specifications
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| Make: | Sunbeam | Sunbeam |
| Model: | Model 3 | S8 500 |
| Years: | 1915-26 | 1949-56 |
| Engine: | Single cylinder, side valve | Parallel twin, SOHC |
| Capacity: | 499 cc / 30.5 cu in | 487 cc / 29.7 cu in |
| Bore x Stroke: | 85 x 88 mm | 70 x 63.5 mm |
| Cooling System: | Air cooled | Air/Oil cooled |
| Starting: | Kick | Kick |
| Transmission: | 3-Speed | 4-Speed |
| Final Drive: | Chain | Shaft |
| Frame: | Single downtube cradle | Twin cradle, steel |
| Front Suspension: | Druid forks | Telescopic, one way damped |
| Rear Suspension: | Rigid, spring loaded saddle | Plunger, spring loaded saddle |
| Front Brakes: | Drum | Drum, leading shoe, 203 mm / 8" |
| Rear Brakes: | Drum | Drum, leading shoe, 203 mm / 8" |