Originally Posted by Iride01

I rode an very old 65 cm frame for many a year and was comfortable on it. And for the last 10 years I rode 59 and 60 cm frames (vintage geometry). I'm only 5' 11". However you'll probably be more comfortable on a smaller frame. I now ride a 56 cm bike.

If you are so stretched out that you are craning your neck up, you might get used to it and you might not.

I found though that sometimes it's the helmet obscuring my forward vision when my head is lower. So adjusting helmet position or getting a helmet that is not as low or bulky in the front can help a lot with neck soreness by you not having to hold your head up so far.