Ducati Monster 900 S vs Ducati Monster S4r
Side-by-side comparison for used motorcycle buyers
Ducati Monster 900 S vs Ducati Monster S4r. Ducati Monster 900 S: 73 hp @ 7,000 rpm hp, 193 kg (wet/curb weight) weight, top speed 210 km/h, Motoryk rating 7.8/10. Ducati Monster S4r: 113 hp @ 9,500 rpm hp, 192 kg (wet/curb weight) weight, top speed 240 km/h, Motoryk rating 7.8/10.
Performance at a Glance
Green = winner per metric · Bars are relative to the higher value
Ducati Monster 900 S
Ducati Monster S4r
Horsepower (hp)
73 hp
113 hp
Torque (Nm)
78 Nm
103 Nm
Top Speed (km/h)
210 km/h
240 km/h
Weight (kg) — lower is better
193 kg
192 kg
Type
Naked
Naked
Horsepower
73 hp @ 7,000 rpm
113 hp @ 9,500 rpm
Torque
78 Nm @ 5,500 rpm
103 Nm @ 7,750 rpm
Top Speed
210 km/h
240 km/h
Weight
193 kg (wet/curb weight)
192 kg (wet/curb weight)
Fuel
6.5 L/100km (approx. 15.4 km/L) — best estimate based on typical real-world riding
7.5 L/100km (estimated real-world average)
Fairing
No
No
Individual Reviews
Ducati Monster 900 S
7.8/10
"Buy the right one and you'll never want to sell it."
Pros
+Intoxicating V-twin character
+Marchesini wheels look stunning
+Excellent B-road handling
Cons
−Desmo service costs bite hard
−Electrical reliability increasingly questionable
−Parts sourcing getting difficult
Ducati Monster S4r
7.8/10
"An intoxicating machine for riders who respect their spanners."
Pros
+Testastretta engine is breathtaking
+Head-turning Italian drama
+Chassis balance near-perfect
Cons
−Desmo service costs are brutal
−Marginal urban heat management
−Electrical reliability genuinely questionable
Top 10 Accessories
Picks that work on either bike.









