BETA Ark One AC | APRILIA RS 457 |
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engine specs | |
Type | |
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Single-cylinder, 2-stroke, air cooled | liquid-cooled twin-cylinder engine with dual camshaft timing and four valves per cylinder |
Displacement | |
49 cm3 | - |
Bore X Stroke | |
1.6x1.5 in OR 41 mm | - |
Compression Ratio | |
12:1 | - |
Horsepower | |
- | 48/- KW(hp)/RPM |
Fuel System | |
DellOrto PHVA 12 HS carburetor | - |
transmission specs | |
Gearbox | |
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CVT, automatic | - |
Clutch | |
Dry automatic centrifugal type | - |
Primary Drive | |
gears | - |
Final Drive | |
V belt drive | - |
chassis specs | |
Frame | |
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tubular steel | Aluminium frame |
Front Suspension | |
hydraulic fork with 32 mm shaft | - |
Rear Suspension | |
monoshock with adjustable spring preload | - |
Front Brake | |
190mm disc | - |
Rear Brake | |
110.5 drum | - |
dimension specs | |
Overall Length | |
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68.5 in OR 1740 mm | - |
Overall Width | |
29.5 in OR 749 mm | - |
Seat Height | |
32.7 in OR 831 mm | - |
Ground Clearance | |
8.5 in OR 216 mm | - |
Weight | |
185 lbs OR 84 kg | 351 lbs OR 159 kg |
Fuel Capacity | |
2 gallons OR 7.6 L | - |
Wheelbase | |
48.8 in OR 1240 mm | - |
tyres specs | |
Front | |
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120/70 - 13 | - |
Rear | |
130/60 - 13 | - |