Tall rider on a ZX4r?

Hey all, i’ve been looking to get a first bike and a ZX4r is one of my main options on my list (I have experience with smaller cc bikes and dirt bikes already), the only issue is ergonomics. I’ve sat on one in a dealer earlier but that obviously wouldn’t compensate for hours of riding on a bike. I’m 6’4, is it too small of a bike for me, especially on longer rides?