Originally Posted by
tahoe_girl
Thanks so much everyone! This is going on my 2nd year with this same bike and I don't recall these back issues. I think the best course of action for the time being is to take it in to my LBS and make sure everything is ok with the fit. Being on the bike is my passion and I would hate for it to start being a painful experience.
Happy Sunday!
Given your history with the bike, it's clearly not a fit issue---it's an acclimation issue. Ride no more than an hour per ride for at least two rides/week. After a month or six weeks, you'll be able to do the longer rides you were accustomed to last year.