Ducati Monster 821 vs Kawasaki Z900
Side-by-side comparison for used motorcycle buyers
Ducati Monster 821 vs Kawasaki Z900. Ducati Monster 821: 109 hp @ 9,250 rpm hp, 193 kg (wet/curb weight) weight, top speed 230 km/h (estimated), Motoryk rating 8.0/10. Kawasaki Z900: 125 hp @ 9,500 rpm hp, 214 kg (wet/curb weight) weight, top speed 225 km/h (estimated; electronically influenced), Motoryk rating 8.5/10.
Performance at a Glance
Green = winner per metric · Bars are relative to the higher value
Ducati Monster 821
Kawasaki Z900
Horsepower (hp)
109 hp
125 hp
Torque (Nm)
89 Nm
98.6 Nm
Top Speed (km/h)
230 km/h
225 km/h
Weight (kg) — lower is better
193 kg
214 kg
Type
Naked
Naked
Horsepower
109 hp @ 9,250 rpm
125 hp @ 9,500 rpm
Torque
89 Nm @ 7,750 rpm
98.6 Nm @ 7,700 rpm
Top Speed
230 km/h (estimated)
225 km/h (estimated; electronically influenced)
Weight
193 kg (wet/curb weight)
214 kg (wet/curb weight)
Fuel
6.5 L/100km (approx. 15.4 km/L, typical real-world average)
5.5–6.5 L/100km (approx. 15–18 km/L, typical real-world average)
Fairing
No
No
Individual Reviews
Ducati Monster 821
8.0/10
"A brilliant middleweight if bought with eyes wide open."
Pros
+Intoxicating V-twin soundtrack
+Razor-sharp chassis feedback
+Genuinely usable power delivery
Cons
−Expensive Ducati servicing costs
−Neglected examples are everywhere
−Uncomfortable seat long distance
Kawasaki Z900
8.5/10
"The used streetfighter benchmark that rivals struggle to beat at this money."
Pros
+Fantastic power-to-price ratio
+Chassis feedback genuinely excellent
+Parts and servicing affordable
Cons
−Pre-2020 forks underwhelming
−Vibes above 8,000rpm noticeable
−Wind protection essentially nonexistent
Top 10 Accessories
Picks that work on either bike.
