| Attribute | Value |
| General |
| Production from | 2007 year |
| Make | KTM |
| Model | KTM 400 EXC Racing |
| Category | Enduro / offroad |
| Engine and transmission |
| Engine type | Single cylinder, four-stroke |
| Valves per cylinder | 4 |
| Fuel system | Carburettor. Keihin MX FCR 39 |
| Engine details | Add |
| Displacement | 398.2 cm³ |
| Power | Add |
| Max RPM | Add |
| Fuel consumption | Add |
| Cooling system | Liquid |
| Transmission type,final drive | Add |
| Torque | Add |
| Bore | 89 mm |
| Stroke | 64 mm |
| Gearbox | 6-speed |
| Greenhouse gases | Add |
| Fuel control | Overhead Cams (OHC) |
| Emission details | Add |
| Driveline | Add |
| Ignition | Kokusan digital 4K-3B |
| Clutch | Wet multi-disc clutch, operated hydraulically |
| Lubrication system | Pressure lubrication with 2 Eaton pumps |
| Compression | Add |
| Exhaust system | Add |
| Chassis |
| Front suspension | WP USD |
| Rear suspension | WP monoshock PDS |
| Front brakes | Single disc |
| Rear brakes | Single disc |
| Diameter | Add |
| Frame type | Central double-cradle-type 25CrMo4 |
| Front tyre | 90/90-21 |
| Rear tyre | 140/80-18 |
| Seat | Add |
| Wheels | Add |
| Front wheel travel | 115 mm |
| Rear wheel travel | 185 mm |
| Trail | Add |
| Rake (fork angle) | 26.5 degree |
| Other |
| Battery capacity | Add |
| Starter | Kick |
| Color options | Add |
| Carrying capacity | Add |
| Light | Add |
| Instruments | Add |
| Electrical Voltage | Add |
| Dimensions |
| Wheelbase | 1,481 mm |
| Kerb weight | Add |
| Dry weight | 113 kg |
| Power/weight ratio | Add |
| Overall height | Add |
| Overall length | Add |
| Overall width | Add |
| Seat height | 925 mm |
| Alternate seat height | Add |
| Ground clearance | 380 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 | Add |
| Fuel capacity | Add |
| Oil capacity | Add |
| Width | Add |
| Height | Add |