Attribute | ![]() Derbi GPR 125 4T 4S × | ![]() Derbi Sonar 125 4T 2011 × |
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General | ||
Production from (year) | 2012 | 2011 |
Make | Derbi | Derbi |
Model | Derbi GPR 125 4T 4S | Derbi Sonar 125 4T |
Category | Sport | Scooter |
Engine and transmission | ||
Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
Valves per cylinder | 4 | - |
Fuel system | Carburettor. 30 mm | Carburettor |
Displacement (cm³) | 124.8 | 124 |
Power (kw) | 10.9 | 7.7 |
Cooling system | Liquid | Air |
Transmission type,final drive | Chain | Belt |
Torque (Nm) | - | 9.6 |
Bore (mm) | 58 | 57 |
Stroke (mm) | 47 | 48.6 |
Gearbox | 6-speed | Automatic |
Fuel control | Single Overhead Cams (SOHC) | - |
Emission details | Euro III | Compartment underthe seat to hold a jet helmet. |
Ignition | Electronic CDI | - |
Clutch | Multi-disc | Automatic centrifugal |
Lubrication system | Oil pump | Mechanical oil pump |
Compression | 12.0:1 | 10.6:1 |
Chassis | ||
Front suspension | 40 mm upside-down fork. | 32 mm fork. |
Rear suspension | Monoshock. | Monoshock |
Front brakes | Single disc. Radial Caliper | Single disc |
Rear brakes | Expanding brake (drum brake). Floating Caliper | Expanding brake (drum brake) |
Diameter (mm) | 218 | 140 |
Front tyre | 110/80-17 | 90/80-16 |
Rear tyre | 130/70-17 | 110/80-14 |
Front wheel travel (mm) | 110 | 76 |
Rear wheel travel (mm) | 120 | 64 |
Other | ||
Starter | Electric | Electric |
Color options |
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Instruments | Multifunction instrument panel with LCD display inspired by MotoGP. | - |
Dimensions | ||
Wheelbase (mm) | 1,355 | 1,325 |
Dry weight (kg) | 120 | 99 |
Power/weight ratio | 0.0908 | 0.0778 |
Overall length (mm) | 2,015 | 1,930 |
Overall width (mm) | 720 | 740 |
Seat height (mm) | 810 | 805 |
Performance | ||
Fuel capacity (l) | 14 | 6 |