BSA B30 | APRILIA RS 457 |
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engine specs | |
Type | |
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air-cooled, four-stroke, single cylinder, OHV | liquid-cooled twin-cylinder engine with dual camshaft timing and four valves per cylinder |
Displacement | |
249 cm3 | - |
Bore X Stroke | |
2.5x2.7 in OR 64 mm | - |
Horsepower | |
3/3000 KW(hp)/RPM | 48/- KW(hp)/RPM |
Fuel System | |
Amal side float carburetor | - |
transmission specs | |
Gearbox | |
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4-speed, manual | - |
Clutch | |
dry | - |
Final Drive | |
chain | - |
chassis specs | |
Frame | |
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steel | Aluminium frame |
Front Suspension | |
single spring girder fork | - |
Rear Suspension | |
hard-tail, sprung seat | - |
Front Brake | |
140mm drum | - |
Rear Brake | |
140mm drum | - |
dimension specs | |
Weight | |
---|---|
- | 351 lbs OR 159 kg |
tyres specs | |
Front | |
---|---|
2.75 x 24 | - |
Rear | |
3.00 x 24 | - |