Aprilia Sonic Gp 50 1999
Complete specifications and details for the 1999 Aprilia Sonic Gp 50. This comprehensive guide includes engine specifications, dimensions, features, and performance data.

Basic Information
Make | Aprilia |
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Model | Sonic Gp 50 |
Year | 1999 |
Category | Scooter |
Chassis, Suspension & Brakes
Frame Type | one beam, split in two cradles |
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Front Brakes | Single disc. 155m with hydraulic transmission |
Front Suspension | hydrauliclly operated teleoscopic fork |
Front Wheel Travel | 65 mm (2.6 inches) |
Rear Brakes | Expanding brake (drum brake). drum brake,110 m with mechanic transmission |
Rear Brakes Diameter | 110 mm (4.3 inches) |
Rear Suspension | hydraulic monoshock absorber |
Rear Wheel Travel | 70 mm (2.8 inches) |
Other Specifications
Color Options | yellow, black, red and black, blue |
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Comments | i have given all the information that i know to the best of my knowledge about this bike |
Starter | Electric & kick |
Engine & Transmission
Displacement | 49.26 ccm (3.01 cubic inches) |
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Engine Details | Single cylinder, two-stroke |
Top Speed | 48.3 km/h (30.0 mph) |
One Quarter Mile | 20.000 seconds |
Zero To One Hundred | 20.000 seconds |
Max Rpm | 1800 |
Compression | 0.5:1 |
Bore X Stroke | 40.0 x 39.2 mm (1.6 x 1.5 inches) |
Valves Per Cylinder | 2 |
Fuel System | Carburettor. unleaded petrol according to Din 51607 |
Ignition | CDI |
Cooling System | Liquid |
Gearbox | Automatic |
Transmission Type Final Drive | Belt |
Fuel Consumption | 99.99 litres/100 km (1.0 km/l or 2.35 mpg) |
Greenhouse Gases | 2,319.8 CO2 g/km. (CO2 - Carbon dioxide emission) |
Exhaust System | stainless steel pipe |
Dimensions & Capacities
Dry Weight | 105.0 kg (231.5 pounds) |
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Fuel Capacity | 8.00 litres (2.11 gallons) |
Reserve Fuel Capacity | 1.50 litres (0.40 gallons) |
Weight Incl Oil Gas Etc | 180.0 kg (396.8 pounds) |