Comparison of Aermacchi Chimera 250 1961 and Horex Imperator 1957 [S]ave
| Attribute |  Horex Imperator 1957 × |  Aermacchi Chimera 250 1961 × |
|---|---|---|
| General | ||
| Production from (year) | 1957 | 1961 |
| Make | Horex | Aermacchi |
| Model | Horex Imperator | Aermacchi Chimera 250 |
| Category | Allround | Sport |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Fuel system | Carburettor | Carburettor. DellÓrto |
| Displacement (cm³) | 400 | 246 |
| Power (kw) | 13.8 | 10 |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | - | 66 |
| Stroke (mm) | - | 72 |
| Fuel control | Overhead Valves (OHV) | - |
| Ignition | - | Bobine |
| Compression | 7.5:1 | 7.0:1 |
| Chassis | ||
| Front suspension | - | Telescopic |
| Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Diameter (mm) | 190 | 140 |
| Frame type | Duplex cradle | - |
| Front tyre | - | 2.50-17 |
| Rear tyre | - | 2.50-17 |
| Seat | - | Dual |
| Wheels | - | Spoked |
| Other | ||
| Starter | - | Kick |
| Dimensions | ||
| Dry weight (kg) | 196 | 125 |
| Power/weight ratio | 0.0704 | 0.08 |
| Overall height (mm) | 990 | 1,000 |
| Overall length (mm) | 2,140 | 2,000 |
| Overall width (mm) | 660 | 610 |
| Performance | ||
| Top speed (km/h) | 135 | 120 |
| Fuel capacity (l) | 17 | - |
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