I'm new to the cycling world, I've been a runner until recently. I have a condition that prohibits me from running. I have resorted to cycling and Im actually excited about it. Well day before yesterday I rode 2 miles just to get used to it because I haven't ridden in YEARS and then yesterday I rode 6 miles up and down hills today I'm not sore.... Needing pros and cons of cycling actually I wouldn't mind taking this far.