Kawasaki Ninja Zx-4r
The Kawasaki Ninja ZX-4R was revived in 2023 after a long absence, originally having roots in the late 1980s small-displacement sportbike era. The 2023 model was introduced as a modern inline four-cylinder 400cc sportbike, filling a niche between the ZX-25R and larger litre-class machines, targeting riders seeking a high-revving, accessible performance machine. It quickly gained attention for offering a genuine four-cylinder supersport experience at a middleweight price point, making it notable in markets worldwide including the US where the original never officially sold.
77 hp
Power
37.2 Nm
Torque
187 kg
Weight
200 km/h (estimated; approximately 185-200 km/h real-world)
Top Speed
5.5 L/100km (approximately 18.2 km/L, typical real-world average)
Fuel
Faired
Body
What Buyers Should Know
Rare 4-Cylinder 400cc
The ZX-4R is one of the only modern 400cc inline-four sport bikes available, making it unique in its class. This engine configuration delivers a high-revving, engaging ride that most competitors simply can't match.
Strong Resale Value
Due to its niche appeal and limited production numbers, the ZX-4R holds its value exceptionally well compared to similar displacement bikes. High demand and low supply mean used examples rarely sell at a significant discount.
Watch Valve Clearances
Like most high-revving inline-four engines, the ZX-4R requires diligent valve clearance checks per Kawasaki's service intervals to avoid performance issues. Skipping this maintenance is the most common mistake owners make and can lead to costly repairs.
Full Specifications
Rivals & Alternatives
Bikes that buyers cross-shop with the Kawasaki Ninja Zx-4r
