Aprilia Sonic 50 GP 2008
Complete specifications and details for the 2008 Aprilia Sonic 50 GP. This comprehensive guide includes engine specifications, dimensions, features, and performance data.

Basic Information
Make | Aprilia |
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Model | Sonic 50 GP |
Year | 2008 |
Category | Scooter |
Chassis, Suspension & Brakes
Frame Type | Split single cradle in high strength tubular steel |
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Front Brakes | Single disc. caliper with two opposing Ø 32 mm pistons |
Front Brakes Diameter | 155 mm (6.1 inches) |
Front Suspension | Hydraulic fork; Ø 27 mm stanchions |
Front Tyre | 100/90-10 |
Front Wheel Travel | 65 mm (2.6 inches) |
Rear Brakes | Expanding brake (drum brake) |
Rear Brakes Diameter | 110 mm (4.3 inches) |
Rear Suspension | Engine acting as swingarm, attached to the frame by rising rate linkages on 2 radial and 2 axial vibration dampers. Rising rate monoshock; Ø 50.5 mm spring |
Rear Tyre | 100/90-10 |
Rear Wheel Travel | 70 mm (2.8 inches) |
Other Specifications
Starter | Electric & kick |
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Engine & Transmission
Displacement | 49.30 ccm (3.01 cubic inches) |
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Engine Details | Single cylinder, two-stroke |
Compression | 12.5:1 |
Bore X Stroke | 40.0 x 39.2 mm (1.6 x 1.5 inches) |
Fuel System | Carburettor. Dell’Orto PH BN 12 carburettor |
Ignition | Electronic ignition |
Lubrication System | Separate mixing with mechanical pump |
Cooling System | Liquid |
Gearbox | Automatic |
Transmission Type Final Drive | Belt |
Dimensions & Capacities
Dry Weight | 73.0 kg (160.9 pounds) |
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Fuel Capacity | 8.00 litres (2.11 gallons) |
Overall Height | 1,070 mm (42.1 inches) |
Overall Length | 1,680 mm (66.1 inches) |
Overall Width | 610 mm (24.0 inches) |
Reserve Fuel Capacity | 2.00 litres (0.53 gallons) |
Seat Height | 770 mm (30.3 inches) If adjustable, lowest setting. |