| Attribute | KTM 640 LC4 Enduro 2007 × | KTM 450 EXC Racing 2007 × |
|---|---|---|
| General | ||
| Production from (year) | 2007 | 2007 |
| Make | KTM | KTM |
| Model | KTM 640 LC4 Enduro | KTM 450 EXC Racing |
| Category | Enduro / offroad | Enduro / offroad |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Valves per cylinder | 4 | 4 |
| Fuel system | Carburettor. Mikuni BST 40 | Carburettor. Keihin MX FCR 39 |
| Displacement (cm³) | 625 | 447.9 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Chain | - |
| Bore (mm) | 101 | 89 |
| Stroke (mm) | 78 | 72 |
| Gearbox | 5-speed | 6-speed |
| Fuel control | Overhead Cams (OHC) | Overhead Cams (OHC) |
| Ignition | Kokusan digital 4K-3B | Kokusan digital 4K-3B |
| Clutch | Wet multi-disc clutch, operated hydraulically | Wet multi-disc clutch, operated hydraulically |
| Lubrication system | Pressure lubrication with 2 Eaton pumps | Pressure lubrication with 2 Eaton pumps |
| Compression | - | 11.0:1 |
| Exhaust system | Aluminium | Aluminium |
| Chassis | ||
| Front suspension | WP USD, 43 mm | WP USD |
| Rear suspension | WP monoshock with Pro Lever | WP monoshock PDS |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Frame type | Central double-cradle-type 25CrMo4 | Central double-cradle-type 25CrMo4 |
| Front tyre | 90/90-21 | 90/90-21 |
| Rear tyre | 130/90-18 | 140/80-18 |
| Front wheel travel (mm) | 115 | 115 |
| Rear wheel travel (mm) | 185 | 185 |
| Rake (fork angle) (degree) | 28 | 26.5 |
| Other | ||
| Starter | Kick | Kick |
| Dimensions | ||
| Wheelbase (mm) | 1,510 | 1,481 |
| Dry weight (kg) | 148 | 113 |
| Seat height (mm) | 910 | 925 |
| Ground clearance (mm) | 330 | 380 |
| Performance | ||
| Fuel capacity (l) | 11.2 | 8 |