The Models from 1999 and 2000 are called the CBR F4.
This honda had with his new engine 110hp. This F4, in contrast to the F2 has not got inspection hatches anymore and the backside comprised of 1 part. The suspension was adjustable and the steel frame was history. The frame was replaced by an aluminum version. The F4 was a few years later provided with injection and was named F4i.