| BSA DBD34 GS | APRILIA RS 457 |
|---|
| engine specs | |
| Type | |
|---|---|
| air-cooled, four-stroke, single cylinder, OHV, 2 valves | liquid-cooled twin-cylinder engine with dual camshaft timing and four valves per cylinder |
| Displacement | |
| 499 cm3 | - |
| Bore X Stroke | |
| 3.3x3.5 in OR 84 mm | - |
| Compression Ratio | |
| 9.0:1 | - |
| Horsepower | |
| 42/7000 KW(hp)/RPM | 48/- KW(hp)/RPM |
| Fuel System | |
| Amal GP carburetor | - |
| transmission specs | |
| Gearbox | |
|---|---|
| 4-speed, manual | - |
| Clutch | |
| wet multi-disc, manual | - |
| Final Drive | |
| chain | - |
| chassis specs | |
| Frame | |
|---|---|
| steel, twin downtube | Aluminium frame |
| Front Suspension | |
| telescopic fork | - |
| Rear Suspension | |
| dual shocks | - |
| Front Brake | |
| drum | - |
| Rear Brake | |
| drum | - |
| dimension specs | |
| Seat Height | |
|---|---|
| 31 in OR 787 mm | - |
| Weight | |
| 379 lbs OR 172 kg | 351 lbs OR 159 kg |
| Fuel Capacity | |
| 4.8 gallons OR 18.2 L | - |
| Wheelbase | |
| 56 in OR 1422 mm | - |
| tyres specs | |
| Front | |
|---|---|
| 3.0 x 19 | - |
| Rear | |
| 3.5 x 19 | - |
