| Attribute | Value |
| General |
| Production from | 2003 year |
| Make | KTM |
| Model | KTM 640 LC4 Enduro |
| Category | Enduro / offroad |
| Engine and transmission |
| Engine type | Single cylinder, four-stroke |
| Valves per cylinder | 4 |
| Fuel system | Carburettor |
| Engine details | Add |
| Displacement | 625 cm³ |
| Power | 40 kw |
| Max RPM | Add |
| Fuel consumption | Add |
| Cooling system | Liquid |
| Transmission type,final drive | Chain |
| Torque | 55 Nm |
| Bore | 101 mm |
| Stroke | 78 mm |
| Gearbox | 5-speed |
| Greenhouse gases | Add |
| Fuel control | Add |
| Emission details | Add |
| Driveline | Add |
| Ignition | Add |
| Clutch | Add |
| Lubrication system | Add |
| Compression | 11.5:1 |
| Exhaust system | Add |
| Chassis |
| Front suspension | WP-USD 43 MA |
| Rear suspension | WP - Monoshock |
| Front brakes | Single disc |
| Rear brakes | Single disc |
| Diameter | 220 mm |
| Frame type | Add |
| Front tyre | 90/90-21 |
| Rear tyre | 130/80-18 |
| Seat | Add |
| Wheels | Add |
| Front wheel travel | 275 mm |
| Rear wheel travel | 300 mm |
| Trail | Add |
| Rake (fork angle) | Add |
| Other |
| Battery capacity | Add |
| Starter | Add |
| Color options | Add |
| Carrying capacity | Add |
| Light | Add |
| Instruments | Add |
| Electrical Voltage | Add |
| Dimensions |
| Wheelbase | 1,510 mm |
| Kerb weight | Add |
| Dry weight | 149 kg |
| Power/weight ratio | 0.2685 |
| Overall height | Add |
| Overall length | Add |
| Overall width | Add |
| Seat height | 925 mm |
| Alternate seat height | Add |
| Ground clearance | 310 mm |
| Front percentage of weight | Add |
| Rear percentage of weight | Add |
| Performance |
| Top speed | Add |
| Acceleration 0-100 km/h | Add |
| Length | Add |
| Reserve fuel capacity | 2.5 l |
| Fuel capacity | 12 l |
| Oil capacity | Add |
| Width | Add |
| Height | Add |