When i got my bike, i was in fairly good shape (having ridden across Europe, London to Rome) but now that i am in College and all, i found that in the worst shape of my life. Biking, of course, is helping me not dwindle to far, and i plan on being in racing shape by march. My only problem is that my bike is a Double Chain Ring. I was wondering how easy (if at all possible) it is to change a Double to a Triple? Of course, i'd send it to a shop and have it professionally done, but i was wondering how complicated it was?