Quote Originally Posted by shootingstar View Post
certainly would be cool if I could possibly dismount while bike is rolling along. somehow my short legs and type of bike (more upright) seems less likely I could do it without crashing my groin or leg on saddle somewhere..

Like probably many here, I did do dismounts on a rolling step-through bike, as child for getting on and off.
You could probably do it with a little practice - your leg goes over the rear wheel, not through the middle, so the limiting factor isn't the height of the front of your bike, but the back, so having an upright bike shouldn't make too much of a difference. I will admit I am hesitant to try it on my bikes with larger wheels though... (my cross bike has 24"ers.... I'm too small to ride a normal sized cross bike). If you practice on grass it doesn't really hurt much if you fall down.