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Derbi Sonar 125 4T - 2010 Specifications and Reviews

The 2010 Derbi Sonar 125 4T is an entry-level automatic scooter designed for urban commuters and novice riders seeking affordable, practical transportation. Its lightweight 124cc four-stroke engine delivers modest but adequate power for city riding, while the automatic transmission and belt drive ensure easy, maintenance-friendly operation. Best known for its simplicity and fuel efficiency, the Sonar 125 4T excels as a reliable, economical first scooter.

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General information

CategoryScooter
Year2010
ModelDerbi Sonar 125 4T
 
 

Engine and Transmission Specifications

ClutchAutomatic centrifugal
Transmission type,final driveBelt
GearboxAutomatic
Cooling systemAir
Lubrication systemMechanical oil pump
Fuel systemCarburettor
Bore x stroke57.0 x 48.6 mm (2.2 x 1.9 inches)
Compression10.6:1
Torque9.60 Nm (1.0 kgf-m or 7.1 ft.lbs) @ 7250
Power10.60
Engine typeSingle cylinder, four-stroke
Capacity:124.00 ccm (7.57 cubic inches)

Brakes, suspension, Frame and wheels

Rear brakes diameter140 mm (5.5 inches)
Rear brakesExpanding brake (drum brake)
Front brakes diameter220 mm (8.7 inches)
Front brakesSingle disc
Rear tyre dimensions110/80-14
Front tyre dimensions90/80-16
Rear suspension travel64 mm (2.5 inches)
Rear suspensionSingle shock absorber
Front suspension travel76 mm (3.0 inches)
Front suspension32 mm fork.
 
 

Physical measures and capacities

Fuel capacity8.00 litres (2.11 gallons)
Wheelbase1,325 mm (52.2 inches)
Overall width740 mm (29.1 inches)
Overall length1,930 mm (76.0 inches)
Seat height805 mm (31.7 inches) If adjustable, lowest setting.
Power/weight ratio0.1071 HP/kg
Weight incl. oil, gas, etc109.0 kg (240.3 pounds)
Dry weight99.0 kg (218.3 pounds)

Other specs

Color optionsWhite
StarterElectric

Rider Reviews

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