Comparison of KTM 640 Duke and KTM 640 LC4 Supermoto 2007 [S]ave
| Attribute |  KTM 640 LC4 Supermoto 2007 × |  KTM 640 Duke × |
|---|---|---|
| General | ||
| Production from (year) | 2007 | 2003 |
| Make | KTM | KTM |
| Model | KTM 640 LC4 Supermoto | KTM 640 Duke |
| Category | Super motard | Super motard |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Valves per cylinder | - | 4 |
| Fuel system | Carburettor. Mikuni BST 40 | Carburettor |
| Displacement (cm³) | 625 | 625 |
| Power (kw) | 39.2 | 40 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Chain | Chain |
| Torque (Nm) | 60 | 60 |
| Bore (mm) | 101 | 101 |
| Stroke (mm) | 78 | 78 |
| Gearbox | 5-speed | 5-speed |
| Fuel control | Overhead Cams (OHC) | - |
| Ignition | Kokusan DC-CDI | - |
| Clutch | Wet multi-disc clutch, operated hydraulically | - |
| Lubrication system | Pressure lubrication with 2 oil pumps | - |
| Compression | 11.7:1 | 11.5:1 |
| Exhaust system | 2 x aluminium | - |
| Chassis | ||
| Front suspension | WP USD | WP-USD 43 MA |
| Rear suspension | WP monoshock with Pro Lever | WP - Monoshock |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 220 | 220 |
| Frame type | Double ground, chrommoly-steel frame, powder-coated | - |
| Front tyre | 120/70-17 | 120/70-17 |
| Rear tyre | 160/60-17 | 160/70-17 |
| Front wheel travel (mm) | 115 | 140 |
| Rear wheel travel (mm) | 185 | 170 |
| Trail (mm) | 99 | - |
| Rake (fork angle) (degree) | 27 | - |
| Other | ||
| Starter | Electric & kick | - |
| Dimensions | ||
| Wheelbase (mm) | 1,510 | 1,460 |
| Dry weight (kg) | 149 | 149 |
| Power/weight ratio | 0.2631 | 0.2685 |
| Seat height (mm) | 910 | 900 |
| Ground clearance (mm) | 280 | 270 |
| Performance | ||
| Reserve fuel capacity (l) | - | 2.5 |
| Fuel capacity (l) | 9.2 | 12 |
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