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2003 Ducati 999 S Overview
The 2003 Ducati 999 S is a sport motorcycle built around 998 cc of displacement. Under the tank sits a Four stroke, 90° °L° twin cylinder, DOHC, desmodromic 4 valves per cylinder, belt driven engine, a compression ratio of 11.4:1. 2003 Ducati 999 S delivers 100 kW @ 9750 rpm of peak power and 106 Nm @ 8000rpm of torque. The factory-quoted top speed stands at 270 km/h, making it a capable performer in its class. From a practical standpoint, the 2003 999 S tips the scales at 199 kg, carries a 15.5-litre fuel tank, offers a seat height of 780 mm and spans a 1420 mm wheelbase. Scroll down for the complete 2003 Ducati 999 S spec sheet covering every technical detail from suspension travel to tyre sizes.
2003 Ducati 999 S compared with other bikes in the Sport category
Here is how the 2003 Ducati 999 S stacks up against other bikes in the Sport category in our database. Each model counts once, using the model year closest to this one, and the comparison covers up to 2003 models.
- Top speed of 270 km/h is higher than that of 713 of the other 879 bikes in the Sport category.
- Only 263 of the other 1606 bikes in the Sport category have a lower seat height than the 780 mm of the 999 S.
- With 998 cc, the 999 S has the joint 483rd largest engine displacement of 2003 bikes in the Sport category, 41% above the category average of 706 cc.
- Narrowing the field to the 268 models within five model years of it, the top speed of 270 km/h is higher than that of 178 of the other 267.
2003 999 S - Pros & Cons
Strengths
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Strong power output: 2003 Ducati 999 S makes 100 kW @ 9750 rpm with 106 Nm @ 8000rpm of torque - competitive figures for its class.
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Fuel injection: The Weber Marelli electronic fuel injection system delivers crisp throttle response and reliable cold starts regardless of altitude or temperature.
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Strong front braking: The disc front brake gives excellent stopping power and responds well to aftermarket braided lines.
Considerations
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Chain final drive upkeep: Chain final drive needs regular cleaning, lubrication and tension checks to get full life out of the sprockets.
Wear Points & Servicing Notes
Cooling system servicing
The Liquid cooled system on the 999 S needs a coolant change roughly every two years (or per the service schedule) - skipping it lets the coolant turn acidic and corrode the aluminium water passages over time.
Fuelling & injector care
Fuelling comes from Weber Marelli electronic fuel injection. Systems like this are largely maintenance-free beyond keeping fuel quality decent and injectors clear - a fuel-system cleaner every service interval is cheap insurance.
Brake disc and pad wear
The disc front brake gives strong, progressive stopping power. Disc thickness and pad depth are worth checking at every tyre change, since worn pads can score the disc surface.
Suspension condition on used examples
Up front, the 999 S runs Öhlins 43mm upside-down fully adjustable fork with TiN surface treatment and Progressive linkage with fully adjustable Öhlins monoshock at the rear. On a used example, check fork seals for weeping oil and test the rear linkage for play - seals are a relatively cheap fix but useful when negotiating price.
Final drive maintenance
Final drive is by chain - expect to clean and lube it every few hundred kilometres and check tension regularly; a neglected chain wears the sprockets faster than the chain itself.
Frame & chassis check
The frame is Tubular steel trellis - worth a visual check for corrosion or impact damage around the head-stock and swingarm pivot on any used example, since frame damage is far costlier to fix than any service item.
999 S - Buying & Maintenance Guide
What to check before buying
When inspecting a used 2003 Ducati 999 S with its 998 cc sport, start with the basics: check the service book for oil change frequency, inspect the drivetrain for wear, and look for oil seepage around the engine casings and rocker covers. This model runs chain final drive, so check chain slack and sprocket tooth profile specifically - a worn sprocket is a cheaper fix now than after it's chewed up the next chain. Now 23 years old, this sport is as likely to show age-related wear (perished rubber, seized fasteners, degraded seals) as mileage-related wear. A cold start test is invaluable - a well-maintained 999 S should fire up cleanly and settle to a smooth idle within a few seconds.
Oil and filter changes
Regular oil changes are the single most important maintenance task for the 999 S's 998 cc four stroke, 90° °l° twin cylinder, dohc, desmodromic 4 valves per cylinder, belt driven. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. With an 11.4:1 compression ratio, running the octane grade specified in the manual matters more than on a lower-compression engine. Always use the correct viscosity grade as specified in the owner's manual.
Fuel system care
The 999 S's fuel injection system is durable but benefits from quality fuel and the occasional use of a fuel-system cleaner additive. If the bike has been stored for more than three months, drain and replace the fuel to prevent varnish deposits in the injectors.
2003 Ducati 999 S - Frequently Asked Questions
What engine does the 2003 Ducati 999 S have?
The 2003 Ducati 999 S uses a Four stroke, 90° °L° twin cylinder, DOHC, desmodromic 4 valves per cylinder, belt driven engine with 998 cc of displacement. It is liquid cooled.
What is the top speed of the 2003 Ducati 999 S?
The 2003 Ducati 999 S has a factory-quoted top speed of 270 km/h. Real-world speeds vary depending on rider weight, conditions and state of tune.
How much does the 2003 Ducati 999 S weigh?
The 2003 Ducati 999 S weighs 199 kg. This is the manufacturer's dry figure.
How much power does the 2003 Ducati 999 S make?
The 2003 Ducati 999 S produces 100 kW @ 9750 rpm of power and 106 Nm @ 8000rpm of torque. These are peak figures.
What is the fuel tank capacity of the 2003 Ducati 999 S?
The 2003 Ducati 999 S has a 15.5-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 258-310 km between stops.
Is the 2003 Ducati 999 S suitable for shorter riders?
The 2003 Ducati 999 S has a seat height of 780 mm. This is a moderate seat height that suits a wide range of rider heights.
What brakes does the 2003 Ducati 999 S have?
The 2003 Ducati 999 S uses 2 x 320 mm Discs, 4 piston calipers at the front and single 245mm disc, 2 piston caliper at the rear.
What tyre sizes does the 2003 Ducati 999 S use?
The 2003 Ducati 999 S runs 120/70 ZR17 front and 190/50 ZR17 rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.
What gearbox does the 2003 Ducati 999 S have?
The 2003 Ducati 999 S is fitted with a 6 Speed transmission.
Ducati 999 S Spec Evolution
The Ducati 999 S was produced across 4 model years (2003-2006). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.
| Specification |
2003 |
2004 |
2005 |
2006 |
| Max Power |
100 kW / 136 hp @ 9750 rpm |
100 kW / 136 hp @ 9750 rpm |
105.2 kW / 143 hp @ 9750 rpm |
105.2 kW / 143 hp @ 9750 rpm |
| Max Torque |
106 Nm / 10.8 kgf-m / 78.1 ft-lb @ 8000rpm |
106 Nm / 10.8 kgf-m / 78.1 ft-lb @ 8000rpm |
114 Nm / 11.6 kgf-m / 84.1 lb-ft @ 8000 rpm |
114 Nm / 11.6 kgf-m / 84.1 lb-ft @ 8000 rpm |
Key Specifications
Engine
Four stroke, 90° °L° twin cylinder, DOHC, desmodromic 4 valves per cylinder, belt driven
Power
100 kW / 136 hp @ 9750 rpm
Torque
106 Nm / 10.8 kgf-m / 78.1 ft-lb @ 8000rpm
Top Speed
270 km/h / 168 mph
Fuel Capacity
15.5 Litres / 4.1 US gal / 3.4 Imp gal
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Full 2003 Ducati 999 S Specifications
Year
2003
Make Model
Ducati 999 S
Seat Height
780 mm / 30.7 in
Wheelbase
1420 mm / 55.9 in
Height
1090 mm / 42.9 in
Length
2095 mm / 82.5 in
Width
730 mm / 28.7 in
Dry Weight
199 kg / 438 lbs
Fuel Capacity
15.5 Litres / 4.1 US gal / 3.4 Imp gal
Displacement
998 cc / 60.9 cu in
Engine Detail
Four stroke, 90° °L° twin cylinder, DOHC, desmodromic 4 valves per cylinder, belt driven
Bore x Stroke
100 x 63.5 mm
Compression Ratio
11.4:1
Cooling System
Liquid cooled
Engine Oil Specification
Synthetic, 10W/40
Exhaust
Single steel muffler with catalytic converter
Fuel Consumption
5.56 L/100 km / 18 km/l / 42.3 US mpg / 50.8 Imp mpg
Fuel Induction
Weber Marelli electronic fuel injection, 54 mm throttle body
Ignition
Marelli electronic
Lubrication
Wet sump
Spark Plug
Champion RG4HC
Starter
Electric
Battery Capacity
12V 10Ah
Clutch
Dry multiplate with hydraulic control
Final Drive
Chain
Final Drive Ratio
2.400:1 (15/36)
Gear Ratios
1st 2.466 / 2nd 1.765 / 3rd 1.400 / 4th 1.182 / 5th 1.043 / 6th 0.958:1
Primary Drive Ratios
Straight cut gears, 1.84:1
Transmission / Drive
6 Speed
Frame Type
Tubular steel trellis
Suspension - Front
Öhlins 43mm upside-down fully adjustable fork with TiN surface treatment
Suspension - Rear
Progressive linkage with fully adjustable Öhlins monoshock
Rake
23.5° - 24.5°
Trail
97 mm / 3.8 in
Wheel Travel - Front
120 mm / 4.7 in
Wheel Travel - Rear
128 mm / 5 in
Brakes - Front
2 x 320 mm Discs, 4 piston calipers
Brakes - Rear
Single 245mm disc, 2 piston caliper
Tyres - Front
120/70 ZR17
Tyres - Rear
190/50 ZR17
Wheels - Front
Y-shaped 5-spoke light alloy 3.50 x 17
Wheels - Rear
Y-shaped 5-spoke light alloy 5.50 x 17
Specifications are compiled from manufacturer documentation and cross-referenced
technical sources, and corrected on an ongoing basis.
Spot an error? Let us know.
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