| BSA C12 | APRILIA RS 457 |
|---|
| engine specs | |
| Type | |
|---|---|
| air-cooled, four-stroke, single cylinder, OHV | 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 | |
| Amal carburetor | - |
| transmission specs | |
| Gearbox | |
|---|---|
| 4-speed, manual | - |
| Final Drive | |
| chain | - |
| chassis specs | |
| Frame | |
|---|---|
| steel | Aluminium frame |
| Front Suspension | |
| telescopic fork | - |
| Rear Suspension | |
| Swinging arm | - |
| Front Brake | |
| drum | - |
| Rear Brake | |
| drum | - |
| dimension specs | |
| Overall Length | |
|---|---|
| 82 in OR 2083 mm | - |
| Overall Width | |
| 26.5 in OR 673 mm | - |
| Seat Height | |
| 29.5 in OR 749 mm | - |
| Ground Clearance | |
| 4 in OR 102 mm | - |
| Weight | |
| 320 lbs OR 145 kg | 351 lbs OR 159 kg |
| Wheelbase | |
| 54 in OR 1372 mm | - |
| tyres specs | |
| Front | |
|---|---|
| 3.00 x 19 | - |
| Rear | |
| 3.00 x 19 | - |
