BETA Evo 300 4 Stroke | APRILIA RS 457 |
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engine specs | |
Type | |
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single cylinder, 4-stroke, 4-valve, liquid-cooled | liquid-cooled twin-cylinder engine with dual camshaft timing and four valves per cylinder |
Displacement | |
297.3 cm3 | - |
Bore X Stroke | |
3.3x2.1 in OR 84 mm | - |
Compression Ratio | |
11.5:1 | - |
Horsepower | |
- | 48/- KW(hp)/RPM |
Fuel System | |
Mikuni CV carburetor | - |
transmission specs | |
Gearbox | |
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5-speed, manual | - |
Clutch | |
wet multi-disc, manual | - |
Final Drive | |
chain | - |
chassis specs | |
Frame | |
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aluminum beam, single wave hydro-formed w/built in fuel tank | Aluminium frame |
Front Suspension | |
38mm Paioli | - |
Rear Suspension | |
adjustable single shock, aluminum bodied, with nitrogen valve including linkage | - |
Front Brake | |
185mm rotor with 4-piston caliper | - |
Rear Brake | |
160mm rotor with twin-piston caliper | - |
dimension specs | |
Seat Height | |
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26 in OR 660 mm | - |
Ground Clearance | |
12.2 in OR 310 mm | - |
Weight | |
157 lbs OR 71 kg | 351 lbs OR 159 kg |
Fuel Capacity | |
0.75 gallons OR 2.8 L | - |
Wheelbase | |
51.4 in OR 1306 mm | - |
tyres specs | |
Front | |
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Michelin Trial 21 | - |
Rear | |
Michelin Trial 18 | - |