Comparison of AJS Model 14 250 1965 and Simson 425 GS 1958 [S]ave
| Attribute |  AJS Model 14 250 1965 × |  Simson 425 GS 1958 × |
|---|---|---|
| General | ||
| Production from (year) | 1965 | 1958 |
| Make | AJS | Simson |
| Model | AJS Model 14 250 | Simson 425 GS |
| Category | Sport | Sport |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Fuel system | Carburettor | Carburettor |
| Displacement (cm³) | 248 | 247 |
| Power (kw) | 12.4 | 12.8 |
| Fuel consumption (l/100km) | - | 3.3 |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | Shaft drive (cardan) |
| Bore (mm) | 69.9 | 68 |
| Stroke (mm) | 64.9 | 68 |
| Greenhouse gases | - | 76.6 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Fuel control | Overhead Valves (OHV) | - |
| Ignition | - | Magneto |
| Clutch | Wet multiplate | - |
| Compression | 7.8:1 | - |
| Chassis | ||
| Front suspension | Telescopic | Telescopic |
| Rear suspension | Swingarm-two shocks | Swingarm |
| Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Diameter (mm) | 152 | 180 |
| Frame type | Open tubular steel | - |
| Front tyre | 3.25-17 | 3.5-19 |
| Rear tyre | 3.25-17 | 4-18 |
| Seat | Dual | Single |
| Wheels | Spoked | - |
| Other | ||
| Starter | Kick | - |
| Dimensions | ||
| Dry weight (kg) | 149 | 157 |
| Power/weight ratio | 0.0832 | 0.0815 |
| Performance | ||
| Fuel capacity (l) | 12.5 | - |
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