Attribute | ![]() Hercules 317 1953 × | ![]() Velocette Valiant 1963 × |
---|---|---|
General | ||
Production from (year) | 1953 | 1963 |
Make | Hercules | Velocette |
Model | Hercules 317 | Velocette Valiant |
Category | Sport | Allround |
Engine and transmission | ||
Engine type | Single cylinder, two-stroke | Two cylinder boxer, four-stroke |
Fuel system | Carburettor. Bing 26mm | Carburettor |
Displacement (cm³) | 197 | 192 |
Power (kw) | 8 | 8.8 |
Cooling system | Air | Air |
Transmission type,final drive | Chain | Shaft drive (cardan) |
Bore (mm) | 62 | 50 |
Stroke (mm) | 66 | 49 |
Fuel control | - | Overhead Valves (OHV) |
Compression | - | 8.0:1 |
Chassis | ||
Front suspension | Telescopic | Hydralic telescopic forks |
Rear suspension | - | Twin shock |
Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
Frame type | Single cradle | - |
Front tyre | 3-19 | - |
Rear tyre | 3-19 | - |
Seat | Two | - |
Wheels | Spoked | - |
Other | ||
Starter | Kick | - |
Dimensions | ||
Dry weight (kg) | 120 | 116 |
Power/weight ratio | 0.0667 | 0.0759 |
Performance | ||
Top speed (km/h) | 95 | 110 |
Fuel capacity (l) | 13 | 12 |