#four-cylinder

One of the worst-kept secrets in motorcycling is now a secret no more: Kawasaki has announced the Ninja ZX-4RR KRT will be coming to the US in 2023, (hopefully) ushering in a revival of 400cc four-cylinder sportbikes that were all the rage in the 1990s. But unlike the current parallel-twin Ninja 400, which is essentially a budget bike dressed in sportbike clothes,  this newest model is worthy of the ZX prefix, as it boasts proper suspension, twin radial brakes, a full electronics suite, and chassis geometry inspired by its ZX-6R and ZX-10R siblings – oh, and let’s not forget – a compact four-banger that will rev to over 15,000 rpm! But more on all those things in a minute.

While the new supercharged Z H2 and retro-styled W800 grabbed the spotlight in western markets, Kawasaki quietly dropped a bombshell for its Asian customers, announcing a new four-cylinder Ninja ZX-25R at the Tokyo Motor Show.

Before Henry Ford’s assembly line production of “affordable” cars displaced them, motorcycles were the prime means of motorized personal transportation.