I test-rode a bike (2018 Specialized Rockhopper Sport) and I liked everything except the height of the handlebars, and it's the XL size so there's no larger option available.
I feel like it would be more comfortable if the handlebars were higher, but I worry that I may raise it and feel like it's too high or realize that my discomfort was caused by something else.
For seat height, I know that when I put my heel on the pedal my leg should be straight, but is there some easy rule like this for determining the perfect handlebar height for me?
Also, will it be difficult for me to experiment with changing the height up and down after buying the bicycle? Does raising the handlebar height require just moving spacers around or do I have to change the stem with a different one?