old thread, just thought I'd chip in!!
5'4 155
The KX is a bit tall for me. I'm working on getting the spring rates right, when the bike is tall to start with AND you have basically zero sag things are a lot worse!!
The irony eh? The more need you have for it to be shorter, the more likely you are to have it taller.
Seriously though, its only tall when I'm trying to move it motor off (kill the motor, have to stop and help someone, etc)
I'd like to take about an inch and a half out of the seat, then it would be about perfect.........
Kinda funny when people look at you and say "can you kickstart that thing???" and they can't!