| KTM640LC4-E 18LITER 1999 | |
| Engine Type | Liquid cooled,1 cylinder,4-stroke,4 valves, contershaft,autom. decompression |
| Starter | Electric Starter and Kickstarter |
| Displacement | 624.6cc |
| Transmission | 5 gears dog clutch |
| Fuel capacity | 18 liters |
| Carburetor | Mikuni BST 40 |
| Ignition | Kokusan DC-CDI |
| Fork | WP Extreme 50mm |
| Wheel travel front | 280mm |
| Shock | WP Monoshock |
| Wheel travel rear | 320mm |
| Weight | 136kg |