Kawasaki could be betting on old-school screamers with the speculated development of a 400cc inline-4 ZX motorcycle.

Kawasaki wants you to join the Ninja Team Green Cup, a ZX-25R one-make grassroots race exclusive to owners.

An Indonesian designer has created awesome naked versions of the ZX-25R inline-4 screamer.

Kawasaki Philippines has just launched the Ninja ZX-25R virtually.

Kawasaki Indonesia has just opened the order books for the ZX-25R.

Would you buy a 250cc 4-cylinder over a conventional parallel twin 400cc?

Akrapovic may have accidentally leaked the ZX-25R's performance figures.

Kawasaki Indonesia puts the upcoming ZX-25R on the dyno for testing.

Kawasaki is planning a one-make race series with the ZX-25R, and this is the race bike.

Kawasaki let its 250cc 4-cylinder ZX-25R loose on Jerez Circuit in Spain.