I hit quads and calves on tuesday evening and hamstring and calves on saturday mournig seems to be working good for me allthough if I where not on cycle I think it might be to much.
Correct. Many people do a thing because that's what somebody else does, not because it works for them. If you want to know how your legs (or whatever) responds to 2 or even 3 times a week training, you have to try and see. Workouts don't have to be a 7 day week schedule either. Maybe legs twice in eight days is best for you. Who knows?
To elaborate on what st8grad mentione, there are entirely too many people at every gym in the world that weigh 160 pounds and their chest routine, for example, looks like this: