| OSSA Copa 250 79 | APRILIA RS 457 |
|---|
| engine specs | |
| Type | |
|---|---|
| Single Cylinder, Two Stroke | liquid-cooled twin-cylinder engine with dual camshaft timing and four valves per cylinder |
| Displacement | |
| 250 cm3 | - |
| Horsepower | |
| - | 48/- KW(hp)/RPM |
| Fuel System | |
| Carburetor | - |
| transmission specs | |
| Gearbox | |
|---|---|
| 5-Speed | - |
| Clutch | |
| Wet multi-discs | - |
| Final Drive | |
| Chain | - |
| chassis specs | |
| Frame | |
|---|---|
| Steel | Aluminium frame |
| Front Suspension | |
| Telescopic Fork | - |
| Rear Suspension | |
| Shock absorbers | - |
| Front Brake | |
| Disc | - |
| Rear Brake | |
| Disc | - |
| dimension specs | |
| Weight | |
|---|---|
| - | 351 lbs OR 159 kg |
