| Attribute | KTM 640 Duke II 1999 × | KTM LC4 640 Supermoto × |
|---|---|---|
| General | ||
| Production from (year) | 1999 | 1999 |
| Make | KTM | KTM |
| Model | KTM 640 Duke II | KTM LC4 640 Supermoto |
| Category | Super motard | Super motard |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Displacement (cm³) | 625 | 625 |
| Power (kw) | 43.8 | 43.8 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Chain | Chain |
| Gearbox | 5-speed | 5-speed |
| Chassis | ||
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Dimensions | ||
| Wheelbase (mm) | 1,460 | 1,510 |
| Dry weight (kg) | 145 | 137 |
| Power/weight ratio | 0.3021 | 0.3197 |
| Performance | ||
| Top speed (km/h) | 170 | 160 |
| Fuel capacity (l) | 12 | 12 |