The third bar is RANGE. It shows the effective reach of a power. This one’s kinda interesting. Some crushers are what’s called “long-range fighters” and can use their powers from even miles away! These such crushers tend to be worse at up-close fighting though. Also it’s not really the norm. But yeah, a crusher with less STRENGTH could still win a fight if they utilised a better RANGE.
Jean really should be able to shoot that lightning but alas not with her EMBARASSINGLY messed up bio-code.