How old are you? What intensity do you ride at? What are you doing nutrition wise before a ride? You have one resting day in there per week which is actually more than what I typically do awhich I know can lead to overtraining...but no sore leg muscles. During the winter my bottles have nothing but water in them for up to 2 hour rides. After my ride I drink a protein drink (1 scoop protein ~20grams protein). The only time my legs get sore are if I race, or I did a distance longer than I normally do. Otherwise I can do back to back to back....rides without any soreness.

You might want to pick up the cyclist's training bible.