| MODEL | DUCATI 998S 2002 - 2003 |
| Year | 2002 - 2003 |
| Engine Type | 4-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 @ 10200 rpm |
| Max Torque | 101 Nm / 74.4 ft-lb @ 8000 rpm |
| Ignition | Digital CDI |
| Induction | Weber Marelli CPU 5.9M electronic fuel injection, 54 mm throttle bodies |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Wet sump |
| Gear Box | 6 speed |
| Clutch | Dry multiplate, hydraulically operated |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Tubular steel trellis |
| Front Suspension | Showa 43 mm upside-down fork, TiN coated, adjustable |
| Rear Suspension | Single-sided swingarm, progressive linkage, Öhlins monoshock |
| Front Brakes | 2 x 320 mm discs, 4-piston calipers |
| Rear Brakes | Single 220 mm disc, 2-piston caliper |
| DIMENSION SPECS | |
| Overall Length | 2030 mm / 79.9 in |
| Overall Width | 780 mm / 30.7 in |
| Overall Height | 1080 mm / 42.5 in |
| Seat Height | 790 mm / 31.1 in |
| Wheelbase | 1410 mm / 55.5 in |
| Ground Clearance | — |
| Dry Weight | 187 kg / 412 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 120/70 ZR17 |
| Rear Tyre | 190/50 ZR17 |
| FUEL SYSTEM | |
| Fuel Capacity | 17 Litres / 4.5 US gal |
| Fuel Consumption | 5.8 L/100 km / 40.2 US mpg |
| Top Speed | 270 km/h / 168 mph |
The 998S was the step-up 998 for 2002, adding the higher-output Testastretta tune (about 136 hp) over the 123 hp base bike for a modest price increase. It kept the 998 chassis and added an Öhlins rear shock and a deep-sump engine for racier lubrication. Reviewers found it more refined and easier to live with than earlier 916-derived models while retaining plenty of Ducati character.
