I'd been wanting to buy a bike for the past couple of months, and a minor running injury was just what I needed to finally get me out on a bike. I bought a Trek 1.2 and I've been riding it every day since I got it about a week and a half ago. I rode 20 miles today and I'm beat. I've got plenty of endurance in the flats, but hills destroy me. I was already in good shape before I started cycling, so my legs haven't caught up to my lungs yet. Also, my shifting is abysmal. I've gotta upgrade that as soon as I can afford it.