BMW R 90 S | APRILIA RS 457 |
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engine specs | |
Type | |
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air-cooled, four-stroke, two cylinder boxer, 2 valves per cylinder | liquid-cooled twin-cylinder engine with dual camshaft timing and four valves per cylinder |
Displacement | |
898 cm3 | - |
Bore X Stroke | |
3.5x2.8 in OR 89 mm | - |
Compression Ratio | |
9.5:1 | - |
Horsepower | |
67/7000 KW(hp)/RPM | 48/- KW(hp)/RPM |
Torque | |
56/5500 lb-ft/RPM OR 76/5500 Nm/RPM | - |
Fuel System | |
2xDellOrto PHM 38 carburetors | - |
transmission specs | |
Gearbox | |
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5-speed, manual | - |
Clutch | |
dry, single plate, diaphragm spring | - |
Final Drive | |
shaft | - |
chassis specs | |
Frame | |
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steel | Aluminium frame |
Front Suspension | |
telescopic hydraulic fork | - |
Rear Suspension | |
dual adjustable shocks | - |
Front Brake | |
dual 260mm discs, 1-piston calipers | - |
Rear Brake | |
200mm drum | - |
dimension specs | |
Overall Length | |
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85.8 in OR 2179 mm | - |
Overall Width | |
29.1 in OR 739 mm | - |
Seat Height | |
32.2 in OR 818 mm | - |
Ground Clearance | |
6.5 in OR 165 mm | - |
Weight | |
474 lbs OR 215 kg | 351 lbs OR 159 kg |
Fuel Capacity | |
6.3 gallons OR 23.8 L | - |
Wheelbase | |
57.7 in OR 1466 mm | - |
tyres specs | |
Front | |
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3.25 - H19 | - |
Rear | |
4.00 - H18 | - |