Kawasaki Z400 vs Kawasaki Z900
Side-by-side comparison for used motorcycle buyers
Kawasaki Z400 vs Kawasaki Z900. Kawasaki Z400: 45 hp @ 10,000 rpm hp, 167 kg (curb weight) weight, top speed 175 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
Kawasaki Z400
Kawasaki Z900
Horsepower (hp)
45 hp
125 hp
Torque (Nm)
38 Nm
98.6 Nm
Top Speed (km/h)
175 km/h
225 km/h
Weight (kg) — lower is better
167 kg
214 kg
Type
Naked
Naked
Horsepower
45 hp @ 10,000 rpm
125 hp @ 9,500 rpm
Torque
38 Nm @ 8,000 rpm
98.6 Nm @ 7,700 rpm
Top Speed
175 km/h (estimated)
225 km/h (estimated; electronically influenced)
Weight
167 kg (curb weight)
214 kg (wet/curb weight)
Fuel
4.5 L/100km (approx. 22 km/L real-world average)
5.5–6.5 L/100km (approx. 15–18 km/L, typical real-world average)
Fairing
No
No
Individual Reviews
Kawasaki Z400
8.0/10
"The sharpest small naked you can buy used right now."
Pros
+Punchy, rev-happy parallel twin
+Excellent suspension for class
+Genuinely stylish naked design
Cons
−Fork seals fail prematurely
−Tip-over damage common used
−Limited wind protection highway
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.
