Kawasaki ZX-4R Being Developed? Reports Hint At New 400cc, 4-Cylinder Kawasaki Supersport

The Kawasaki ZX-4R might be coming soon according to rumours. Reports have suggested that Kawasaki is working on a higher displacement version of the ZX-25R. The Kawasaki ZX-4R is said to be based on the ZX-25R and even uses the same