Kawasaki Zx-25r vs Kawasaki Ninja H2r
Side-by-side comparison for used motorcycle buyers
Kawasaki Zx-25r vs Kawasaki Ninja H2r. Kawasaki Zx-25r: 45 hp @ 15,500 rpm hp, 183 kg (wet/curb weight) weight, top speed ~185 km/h (estimated; some sources report up to 190 km/h), Motoryk rating 8.5/10. Kawasaki Ninja H2r: 310 hp @ 14,000 rpm (with ram-air effect; 300 hp without) hp, 216 kg (curb/wet weight) weight, top speed 400+ km/h (manufacturer-tested; electronically limited in some configurations), Motoryk rating 8.5/10.
Performance at a Glance
Green = winner per metric · Bars are relative to the higher value
Kawasaki Zx-25r
Kawasaki Ninja H2r
Horsepower (hp)
45 hp
310 hp
Torque (Nm)
21.7 Nm
165 Nm
Top Speed (km/h)
185 km/h
400 km/h
Weight (kg) — lower is better
183 kg
216 kg
Type
Supersport
Supersport
Horsepower
45 hp @ 15,500 rpm
310 hp @ 14,000 rpm (with ram-air effect; 300 hp without)
Torque
21.7 Nm @ 13,000 rpm
165 Nm @ 12,500 rpm
Top Speed
~185 km/h (estimated; some sources report up to 190 km/h)
400+ km/h (manufacturer-tested; electronically limited in some configurations)
Weight
183 kg (wet/curb weight)
216 kg (curb/wet weight)
Fuel
~5.5 L/100km (approximately 18 km/L, real-world estimate)
Estimated 8–12 L/100km under track conditions (no official real-world figure; track-only use)
Fairing
Yes
Yes
Individual Reviews
Kawasaki Zx-25r
8.5/10
"The most addictive 250 ever built, buy it without hesitation."
Pros
+Screaming inline-four exhaust note
+Razor-sharp chassis and handling
+Incredible mechanical novelty factor
Cons
−Expensive valve clearance checks
−Needs constant high revs
−Limited low-end torque
Kawasaki Ninja H2r
8.5/10
"Spectacular machine, but only for serious, wealthy track obsessives."
Pros
+Unmatched supercharged engineering showcase
+Chassis inspires genuine confidence
+Bulletproof Kawasaki build quality
Cons
−Crippling ongoing maintenance costs
−Track-only limits usability severely
−Previous abuse nearly guaranteed
Top 10 Accessories
Picks that work on either bike.
