| BSA C11 | APRILIA RS 457 |
|---|
| engine specs | |
| Type | |
|---|---|
| air-cooled, four-stroke, single cylinder, 2 valves | liquid-cooled twin-cylinder engine with dual camshaft timing and four valves per cylinder |
| Displacement | |
| 249 cm3 | - |
| Horsepower | |
| 12/4000 KW(hp)/RPM | 48/- KW(hp)/RPM |
| Fuel System | |
| carburetor | - |
| transmission specs | |
| Gearbox | |
|---|---|
| 4-speed, manual | - |
| Final Drive | |
| chain | - |
| chassis specs | |
| Frame | |
|---|---|
| steel | Aluminium frame |
| Front Suspension | |
| telescopic fork | - |
| Rear Suspension | |
| plunger shocks | - |
| Front Brake | |
| drum | - |
| Rear Brake | |
| drum | - |
| dimension specs | |
| Weight | |
|---|---|
| - | 351 lbs OR 159 kg |
