| Attribute | Sym HD Evo 125 2010 × | Derbi GPR 125 Racing 2009 × |
|---|---|---|
| General | ||
| Production from (year) | 2010 | 2009 |
| Make | Sym | Derbi |
| Model | Sym HD Evo 125 | Derbi GPR 125 Racing |
| Category | Scooter | Sport |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, two-stroke |
| Valves per cylinder | 4 | - |
| Fuel system | Carburettor | Carburettor. 28 mm |
| Displacement (cm³) | 124.5 | 124.8 |
| Power (kw) | 9.1 | - |
| Cooling system | Air | Liquid |
| Transmission type,final drive | Belt | Chain |
| Bore (mm) | - | 56 |
| Stroke (mm) | - | 50.7 |
| Gearbox | Automatic | 6-speed |
| Clutch | - | Multi-plate |
| Lubrication system | - | Oil pump |
| Compression | 10.5:1 | 12.5:1 |
| Chassis | ||
| Front suspension | Telescopic Fork | 40 mm upside-down fork. |
| Rear suspension | Unit Swing Arm | Monoshock. |
| Front brakes | Single disc | Single disc |
| Rear brakes | Expanding brake (drum brake) | Single disc |
| Diameter (mm) | 130 | 180 |
| Front tyre | 100/80-16 | 110/70-17 |
| Rear tyre | 120/80-16 | 140/70-17 |
| Other | ||
| Starter | Electric | Electric |
| Color options |
|
|
| Dimensions | ||
| Wheelbase (mm) | 1,385 | 1,355 |
| Dry weight (kg) | 135 | 102 |
| Power/weight ratio | 0.0674 | - |
| Overall height (mm) | 1,165 | 1,116 |
| Overall length (mm) | 2,064 | 2,024 |
| Overall width (mm) | 706 | 720 |
| Performance | ||
| Fuel capacity (l) | 8 | 13 |
| Oil capacity (l) | - | 1.5 |