Ninja ZX-25R 250CC 4 cilindros: SOM do motor e mais detalhes! #KAWASAKI #ZX25R #SOUND #EXHAUST - YouTube
Kawasaki will launch the ZX-25R with a 250cc 4-cylinder engine later this year – ElectroDealPro
The Kawasaki ZX-25R is real: 250 cc, four-cylinder glory - RevZilla
Is Kawasaki really developing a new 250cc four-cylinder sports bike?
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