I think that there is not going to be such a big problem with your hight...There is enough leg room on the bike and the handlebar is adjustable , but the best thing to do is to test ride one (if possible) and see...
HI , we are a group of five people riding our bikes in the videos of this page....the guy riding the GS is 1.68 m ...he is also riding the ducati and the ktm in the other videos.