| MODEL | DUCATI 999S 2004 |
| Year | 2004 |
| Engine Type | Four stroke, 90° L-twin, DOHC, desmodromic, 4 valves per cylinder, belt driven |
| Displacement / Capacity | 998 cc / 60.9 cu in |
| Bore X Stroke | 100 x 63.5 mm |
| Compression Ratio | 11.4:1 |
| Cooling System | Liquid cooled |
| Max Power | 100 kW / 136 hp @ 9750 rpm |
| Max Torque | 106 Nm / 10.8 kgf-m / 78.1 ft-lb @ 8000 rpm |
| Ignition | Marelli electronic |
| Induction | Weber Marelli electronic fuel injection, 54 mm throttle body |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Wet sump, synthetic 10W/40 |
| Gear Box | 6 Speed |
| Clutch | Dry multiplate, hydraulic control |
| Final Drive | Chain, ratio 2.400:1 (15/36) |
| CHASSIS SPECS | |
| Frame | Tubular steel trellis |
| Front Suspension | Öhlins 43 mm upside-down fully adjustable fork, TiN surface treatment, 120 mm / 4.7 in travel |
| Rear Suspension | Progressive linkage, fully adjustable Öhlins monoshock, 128 mm / 5 in travel |
| Front Brakes | 2 x 320 mm discs, 4 piston calipers |
| Rear Brakes | Single 245 mm disc, 2 piston caliper |
| DIMENSION SPECS | |
| Overall Length | 2095 mm / 82.5 in |
| Overall Width | 730 mm / 28.7 in |
| Overall Height | 1090 mm / 42.9 in |
| Seat Height | 780 mm / 30.7 in |
| Wheelbase | 1420 mm / 55.9 in |
| Ground Clearance | — |
| Dry Weight | 199 kg / 438 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 120/70 ZR17 |
| Rear Tyre | 190/50 ZR17 |
| FUEL SYSTEM | |
| Fuel Capacity | 15.5 Litres / 4.1 US gal |
| Fuel Consumption | 5.56 L/100 km / 18 km/l |
| Top Speed | 270 km/h / 168 mph |
The 2004 S version of the Testastretta-engined 999 superbike swaps the standard bike's Showa suspension for Öhlins units and adds radial-mount front calipers, a steering damper and lighter engine internals. An optional racing kit raises output. Reviewers praised its handling, braking and power delivery, noting it can be demanding for inexperienced riders.
