| Engine Modle | 170MM |
| Engine Name | DB250 four valve |
| Engine Type | Single cylinder,4 valves,water-cooled,4 strokes |
| Displacement(ml) | 250 |
| Dimension (mm) | 333*342*458 |
| Net Weight (KG) | 35 |
| Max.power (kw/r/min) | 18/8000±400 |
| Max.Torque (N.m/r/min) | 21.5/7000 |
| Compression Ratio | 10:01 |
| Bore and Stroke (mm*mm) | 70*65 |
| Ignition Method | CDI |
| Lubrication Method | Pressure splashing |
| Min.Fuel Consumption (g/K/w.h) | ≤354 |
| Starting Method | Electric |
| Clutch Method | Wet,multi-plate |
| Gearshift Method | Six-shifting gears |
| Primary ratio | 2.727 |
| Applicatble Motorcycle Type | Dirt bike,for off road and high way |
| Specialty |
| DB250(170mm)Water-Cooled 4 valve 250CC |
| ★ Advanced technology of double overhead camshaft(DOHC) |
| ★ 4-Valve--sufficient air for higher fuel efficiency |
| ★ No rock arm--reduce the noise and no frequent valve adjusting |
| ★ Racing power strong power & torque |
| ★ Development water-cooled system-professional design never overheat the engine |
| ★ New balance shaft structure,more effective absorption |
| ★ Advanced piston design,super resistance |