| KTM400SX RACING 2000 | |
| Engine Type | 1-Cylinder, 4-stroke |
| Displacement(cc) | 398 |
| Bore(mm) | 89 |
| Stroke(mm) | 64 |
| Fuel | 98 RON |
| Valves | 4 Valves, OHC, Roller Rocker Lever |
| Crankshaft Bearing | 2x Roller Bearing |
| Conrod Bearing | Lower Needle Bearing |
| Engine Lubrication | Pressure circulation lubrication |
| with 2 rotor pumps | |
| Engine Oil | Shell 15W40 CX |
| Primary Ratio | 33:76 |
| Clutch | Multi disc in oil bath, hydraulic |
| Transmission | 4 Gears SX |
| Ignition | Kokusan DC-CDI |
| Spark Plug | NGK CR 8 EK |
| Cooling | Liquid Cooled |
| Carburetor | Keihin MX FCR39 |
| Frame | Chrome-Molybdenum |
| Subframe | Aluminium |
| Handlebar | MAGURA Aluminium tapered |
| Frok | WP USD 43 MA |
| Suspension travel front/rear | 295/320mm |
| Rear Suspension | WP-PDS Monoshock |
| Front Brake | disc 260mm |
| Rear Brake | disc 220mm |
| Front Tire | Bridgestone 80/100-21" |
| Front Rim | 1.60-21" Excel |
| Rear Tire | Bridgestone 110/90-19" |
| Rear Rim | 2.15-19" Excel |
| Fuel Capacity | approx. 7.5 Liters |
| Final Drive | 14:50 |
| Chain | 5/8" * 1/4" |
| Steering Head Angle | 63 |
| Wheelbase | 1481 +/- 10 mm |
| Seatheight | 925mm |
| Ground Clearance | 380mm |
| Weight(dry) | approx. 107kg |