You are right. It is tight. It could use way more leg room. Distance to the floor behind the pedals is great, but from the seat to the pedals is pretty tight. I am 200lbs, between 6'2"-6'3" and could sure use more leg room. It would help if it was wider also.
I put the seat all the way down and back and raise the front all the way up to get the most room and some leg support.
I still like the GX, but it could use more leg room. Skip