The Kawasaki Ninja ZX-4R is a 399cc four-cylinder sportbike launched in 2023. It revived the small-capacity four-cylinder class, with a high-revving engine that produces strong power and a distinctive sound.
It has a full electronics package with traction control, riding modes and a quickshifter on some versions. It is aimed at riders who want a sporty, exciting bike that is still accessible. Rivals include the Aprilia RS 457 and Yamaha R3.
