| MODEL | DUCATI MONSTER S4R 2003 |
| Year | 2003 |
| Engine Type | Four-stroke, 90° L-twin, DOHC, desmodromic, 4 valves per cylinder, belt driven |
| Displacement / Capacity | 996 cc / 60.8 cu in |
| Bore X Stroke | 96 x 68.8 mm |
| Compression Ratio | 11.6:1 |
| Cooling System | Liquid cooled |
| Max Power | 83.4 kW / 113 hp @ 8750 rpm |
| Max Torque | 95.5 Nm / 9.6 kgf-m / 70.4 ft-lb @ 7000 rpm |
| Ignition | Analogue CDI |
| Induction | Marelli electronic fuel injection, 50 mm throttle bodies |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Wet sump |
| Gear Box | 6 speed |
| Clutch | Dry multiplate, hydraulic control |
| Final Drive | Chain; 15T front, 42T rear |
| CHASSIS SPECS | |
| Frame | Tubular steel trellis |
| Front Suspension | Showa 43 mm upside-down fork, fully adjustable; 130 mm / 5.1 in travel |
| Rear Suspension | Progressive linkage, fully adjustable Showa monoshock with piggyback reservoir, single-sided aluminium swingarm; 148 mm / 5.8 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 | 2121 mm / 83.5 in |
| Overall Width | 790 mm / 31.1 in |
| Overall Height | 1030 mm / 40.6 in |
| Seat Height | 806 mm / 31.7 in |
| Wheelbase | 1440 mm / 56.7 in |
| Ground Clearance | — |
| Dry Weight | 193 kg / 425 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 120/70 ZR17 |
| Rear Tyre | 180/55 ZR17 |
| FUEL SYSTEM | |
| Fuel Capacity | 15 Litres / 4.0 US gal |
| Fuel Consumption | 5.4 L/100 km / 43.5 US mpg |
| Top Speed | 235.5 km/h / 146.3 mph |
The S4R replaced the S4 as the top Monster, using the 996 superbike engine with a claimed 113 hp. It was recognisable by its twin high-mounted silencers on the right, a single-sided aluminium swingarm, extra carbon trim and fully adjustable Showa suspension. Press tests praised the acceleration, handling and looks but noted a heavy clutch and abrupt low-rev fuelling in town.
