Ducati Monster 900 S
The Ducati Monster 900 S has a top speed of 210 km/h, produces 73 hp and weighs 193 kg. Motoryk rates it 7.8/10.
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
Video Review
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.
Generations & Specs by Year
Original air-cooled 904cc Pantah-derived V-twin, tubular trellis frame, single-sided swingarm, minimal fairing.
"Raw, gorgeous, temperamental — the original naked done right."
The 900S taught me that motorcycles can have actual personalities — this one is stubborn, demanding, and occasionally infuriating, which somehow makes you love it more. That Pantah-derived L-twin pulls hard from 3,500 rpm with a mechanical soundtrack that no modern bike replicates: valvetrain clatter, intake bark, exhaust thump all layered into something that feels alive under you. The single-sided swingarm and trellis frame make every service stop a gallery moment, but don't kid yourself — the carburetion is spiteful in cold weather, the suspension is soft for anything spirited, and heat soak in traffic will cook your right leg through your jeans. I put 14,000 miles on one over two years and never once stopped noticing it; it just also never stopped reminding me it was built for passion, not convenience.
Pros
Cons
Revised fuel delivery, updated instrumentation, minor cosmetic refresh, improved carburetion on carbureted 904cc engine.
"Raw, beautiful, impractical — exactly what you signed up for."
The Gen 2 Monster 900 S idles with a potato-potato lope that still turns heads at fuel stops, and once you're rolling, that 904cc Desmo twin pulls hard from 3,000 rpm with a mechanical urgency no modern ride-by-wire bike can fake. Ducati's carburetion tweaks genuinely helped — cold starts are less of a ritual, and the flat spot around 4,500 rpm that plagued earlier carbs is mostly gone, though 'mostly' is doing real work in that sentence. At 185 kg it feels lighter than the spec sheet suggests, flickable and direct on back roads, but the single front disc setup on base trims will have you planning your braking points like a chess match. Live with it daily and the heat soak off that rear cylinder in traffic, the narrow power band requiring constant gearbox work in cities, and the roughly 200 km tank range will test your commitment — but nothing about this bike was ever supposed to be convenient.
Pros
Cons
Used Buyer Review
"Buy the right one and you'll never want to sell it."
$4,500-$8,500 usedThe Monster 900S is genuinely one of the most characterful bikes you can buy used, but you need to go in with eyes open. That air-cooled 904cc V-twin is raw, torquey, and sounds absolutely savage — it'll pull hard from 3,000rpm and never let you forget it's Italian. The S model adds Showa forks, a rear monoshock upgrade, and Marchesini wheels, which transform the handling compared to the standard 900. It's genuinely good fun on B-roads. Here's the reality check though: these bikes are old now, and neglected examples are everywhere. Check the bevel service history obsessively — desmo valve clearances are non-negotiable and expensive if skipped. Electrical gremlins, oil weeping from the engine cases, and tired suspension are common on high-mileage examples. Budget at least $500-800 annually for maintenance from a specialist. Find a bike with documented Ducati servicing and you'll have something genuinely special. Find a barn find nightmare and you'll fund someone else's holiday.
Top 10 Accessories
Curated picks for the Ducati Monster 900 S — owned, ridden, recommended.
Common Problems
🔥 2 CRITICALBattery voltage at idle, look for melted wiring near rectifier
Loud rattle at idle, inspect basket fingers for notching
Ask for belt replacement records, due every 2 years
Rough idle, hesitation on throttle, inspect CV diaphragms
✅Pre-Purchase Checklist
Solid if maintained, service history is critical
Full Specifications
Rivals & Alternatives
Bikes that buyers cross-shop with the Ducati Monster 900 S

Ducati Monster 696

Ducati Monster S4r

Ducati Monster 900

Ducati Monster 796

Benelli Tnt 899
Compare Ducati Monster 900 S Side-by-Side
compare_arrowsSpecs, power, weight & buyer verdict — head-to-head with the bikes most often cross-shopped.
Ducati Monster 900 S vs Ducati Monster 696
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Ducati Monster 900 S vs Ducati Monster S4r
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Ducati Monster 900 S vs Ducati Monster 900
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Ducati Monster 900 S vs Ducati Monster 796
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Ducati Monster 900 S vs Benelli Tnt 899
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More Ducati Monster 900 S Guides
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Discussion
Frequently Asked Questions
What are common problems with the Ducati Monster 900 S? +
Charging system failure, stator and rectifier: Battery voltage at idle, look for melted wiring near rectifier (serious) | Dry clutch basket rattle and wear: Loud rattle at idle, inspect basket fingers for notching (moderate) | Cam belt service neglect, engine damage risk: Ask for belt replacement records, due every 2 years (serious)
Is the Ducati Monster 900 S a good motorcycle? +
Buy the right one and you'll never want to sell it. Rating: 7.8/10. Best for: Experienced riders wanting Italian soul, weekend warriors. Avoid if: You want cheap, reliable daily commuter transport.
What is the horsepower of the Ducati Monster 900 S? +
The Ducati Monster 900 S produces 73 hp @ 7,000 rpm, with 78 Nm @ 5,500 rpm of torque. Top speed: 210 km/h.
Is the Ducati Monster 900 S good for beginners? +
Yes — the Ducati Monster 900 S is a reasonable choice for new riders (73 hp is manageable), weighing 193 kg. Experienced riders wanting Italian soul, weekend warriors
Is the Ducati Monster 900 S reliable? +
Owners report 2 critical issues to watch for on the Ducati Monster 900 S, notably: Charging system failure, stator and rectifier (Battery voltage at idle, look for melted wiring near rectifier). Buy with a pre-purchase inspection.
Is the Ducati Monster 900 S good for daily use? +
Experienced riders wanting Italian soul, weekend warriors Fuel: 6.5 L/100km (approx. 15.4 km/L) — best estimate based on typical real-world riding.
How fast is the Ducati Monster 900 S? +
The Ducati Monster 900 S reaches a top speed of 210 km/h, producing 73 hp at 193 kg curb weight. Real-world performance depends on rider weight, gearing, and road conditions.
What gear should I buy for a Ducati Monster 900 S? +
Motoryk has curated a Top 10 gear list specifically for the Ducati Monster 900 S, covering engine oil, tires, chain, battery, and brake pads — see motoryk.com/bikes/ducati/monster-900-s/top10. Each pick is matched to this bike's spec.












