Quote Originally Posted by Lisa S.H. View Post
In my opinion, soreness is perfectly normal any time we make even small body position changes- even changes for the better. And soreness can last for many days while our bodies adapt. It doesn't necessarily mean that there is something wrong- just that there is something new.
I think this is 100% true. In your case, makbike, you are going from a Univega Grand Turismo which I'm going to guess is a touring geometry and likely a bit more upright than your new Lemond Buenos Aires WSD. That'll mean that your bike position will change and even if fit is correct, you'll need to adapt. When I went to a slightly more aero position on a better fitting bike, I did notice it in the muscles in my lower back until my body adjusted. Now it feels perfect, so my guess is that you will adjust before too long.