Kawasaki Z650 vs Kawasaki Z900
Side-by-side comparison for used motorcycle buyers
Kawasaki Z650 vs Kawasaki Z900. Kawasaki Z650: 68 hp @ 8,000 rpm hp, 187 kg (wet/curb weight) weight, top speed 185 km/h, Motoryk rating 7.8/10. 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 Z650
Kawasaki Z900
Horsepower (hp)
68 hp
125 hp
Torque (Nm)
64 Nm
98.6 Nm
Top Speed (km/h)
185 km/h
225 km/h
Weight (kg) — lower is better
187 kg
214 kg
Type
Naked
Naked
Horsepower
68 hp @ 8,000 rpm
125 hp @ 9,500 rpm
Torque
64 Nm @ 6,700 rpm
98.6 Nm @ 7,700 rpm
Top Speed
185 km/h
225 km/h (estimated; electronically influenced)
Weight
187 kg (wet/curb weight)
214 kg (wet/curb weight)
Fuel
4.5 L/100km (approx. 22 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
Kawasaki Z650
7.8/10
"A genuinely sorted middleweight that rewards riders who outgrew 400s."
Pros
+Torquey twin from low revs
+Lightweight and genuinely flickable
+Parts cheap and plentiful
Cons
−Rear shock deteriorates quickly
−Pillion comfort frankly terrible
−Wind protection essentially nonexistent
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.
