Comparison of Ducati 999 S 2003 and Ducati ST4S [S]ave
| Attribute |  Ducati ST4S × |  Ducati 999 S 2003 × |
|---|---|---|
| General | ||
| Production from (year) | 2003 | 2003 |
| Make | Ducati | Ducati |
| Model | Ducati ST4S | Ducati 999 S |
| Category | Sport touring | Sport |
| Engine and transmission | ||
| Engine type | V2, four-stroke | V2, four-stroke |
| Valves per cylinder | 4 | 4 |
| Fuel system | Injection | Injection |
| Displacement (cm³) | 996 | 998 |
| Power (kw) | 85.4 | 99.3 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Chain | Chain |
| Torque (Nm) | 98 | 106 |
| Bore (mm) | 98 | 100 |
| Stroke (mm) | 66 | 63.5 |
| Gearbox | 6-speed | 6-speed |
| Fuel control | Desmodromic valve control | Desmodromic valve control |
| Compression | 11.5:1 | 11.4:1 |
| Chassis | ||
| Front brakes | Double disc | Double disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 245 | 240 |
| Front tyre | 120/70-ZR17 | 120/70-ZR17 |
| Rear tyre | 180/55-ZR17 | 190/50-ZR17 |
| Front wheel travel (mm) | 130 | 120 |
| Rear wheel travel (mm) | 148 | 128 |
| Dimensions | ||
| Wheelbase (mm) | 1,430 | 1,420 |
| Dry weight (kg) | 212 | 199 |
| Power/weight ratio | 0.4028 | 0.499 |
| Overall height (mm) | 1,180 | 1,090 |
| Overall length (mm) | 2,070 | 2,095 |
| Seat height (mm) | 820 | 780 |
| Performance | ||
| Reserve fuel capacity (l) | 6 | 3 |
| Fuel capacity (l) | 21 | 15.5 |
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