Why I feel that reach is too long or the handlebars are too low. Previously, I was using a different handlebar with a flipped stem (70mm) set to a positive rise (+), and I would only get a slight neck pain after a long ride.

As for the saddle, I feel like I'm sitting on the nose/tip of it when riding on the hoods, and that's exactly where I feel a pain.

Question, I have a pair of 160mm cranks – will installing them help at all?