Ducati Monster 900 S
The Ducati Monster 900 S was introduced in 1998 as a higher-spec variant of the original Monster 900, which itself debuted in 1993 as a revolutionary naked bike designed by Miguel Galluzzi. The 'S' version featured upgraded Öhlins suspension, Marchesini wheels, and Brembo Gold Series brakes, making it the premium offering in the Monster lineup. It became iconic for combining raw, minimalist styling with genuine performance, helping define the modern naked motorcycle segment and cementing Ducati's reputation beyond the superbike world.
73 hp
Power
78 Nm
Torque
193 kg
Weight
210 km/h
Top Speed
6.5 L/100km (approx. 15.4 km/L) — best estimate based on typical real-world riding
Fuel
Naked
Body
What Buyers Should Know
Desmo Valve Service
The desmodromic valve system requires service every 6,000–7,500 miles and is labor-intensive, often costing $600–$1,000+. Always verify service history before buying.
Oil & Coolant Watch
The air-cooled 904cc L-twin is known for oil leaks around the clutch cover and cylinder head gaskets on high-mileage examples. Inspect these areas carefully during pre-purchase inspection.
Strong Collector Value
The Monster 900S holds its value well as a sought-after 1990s Italian classic, with clean low-mileage examples appreciating steadily. It's considered one of the most iconic naked bikes ever made.
Full Specifications
Rivals & Alternatives
Bikes that buyers cross-shop with the Ducati Monster 900 S




