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.
General information | |
| Category | Scooter |
| Year | 2010 |
| Model | Derbi Sonar 125 4T |
| | |
Engine and Transmission Specifications | |
| Clutch | Automatic centrifugal |
| Transmission type,final drive | Belt |
| Gearbox | Automatic |
| Cooling system | Air |
| Lubrication system | Mechanical oil pump |
| Fuel system | Carburettor |
| Bore x stroke | 57.0 x 48.6 mm (2.2 x 1.9 inches) |
| Compression | 10.6:1 |
| Torque | 9.60 Nm (1.0 kgf-m or 7.1 ft.lbs) @ 7250 |
| Power | 10.60 |
| Engine type | Single cylinder, four-stroke |
| Capacity: | 124.00 ccm (7.57 cubic inches) |
Brakes, suspension, Frame and wheels | |
| Rear brakes diameter | 140 mm (5.5 inches) |
| Rear brakes | Expanding brake (drum brake) |
| Front brakes diameter | 220 mm (8.7 inches) |
| Front brakes | Single disc |
| Rear tyre dimensions | 110/80-14 |
| Front tyre dimensions | 90/80-16 |
| Rear suspension travel | 64 mm (2.5 inches) |
| Rear suspension | Single shock absorber |
| Front suspension travel | 76 mm (3.0 inches) |
| Front suspension | 32 mm fork. |
| | |
Physical measures and capacities | |
| Fuel capacity | 8.00 litres (2.11 gallons) |
| Wheelbase | 1,325 mm (52.2 inches) |
| Overall width | 740 mm (29.1 inches) |
| Overall length | 1,930 mm (76.0 inches) |
| Seat height | 805 mm (31.7 inches) If adjustable, lowest setting. |
| Power/weight ratio | 0.1071 HP/kg |
| Weight incl. oil, gas, etc | 109.0 kg (240.3 pounds) |
| Dry weight | 99.0 kg (218.3 pounds) |
Other specs | |
| Color options | White |
| Starter | Electric |






































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