cbr600cc or a kawasaki ZZR 600? i have never ridden a bike but ofcourse i will take and pass the msf course. am 5'9 male 135lbs. i though about the ninja 250 but ive heard that it makes noise when it hits 80mph
the honda cbr 600f4 or f4i is a good starter bike I am 5'9 155lbs started on a f4 and it was great. That is a motorcycle you can use to start also is one of the prefered motorcycles for stunts or the race track.
my advice for sport bikes: go used, go small (600 or smaller), and take the MSF
once you get the basics down, go for a track day at your local track, you will learn A LOT, and you will actually be able to use the bike to most of it's potential...