The Mountain Bike program participates in the weekly Lakes Region Mountain Bike Association Series, races matching a collection of private and public schools in Maine, New Hampshire and Vermont. 

The Dublin School Mountain Bike Program is a well disciplined activity with a focus on learning the necessary skills and gaining the physical strength and aerobic capacity to successfully compete in cross country mountain bike races held over relatively arduous, yet safe terrain. Dublin students compete in cross country mountain bike races of six to eight miles in length. In Mountain Bike Racing, there are no benches and no cuts. Everyone races and results are combined for a team score. We train and race at the Dublin Nordic Center. Almost 6 miles of mostly machine built single-track. Technical at times, flowy at times, and always on a hill, the trails at Dublin are some of the most challenging and fun of the Monadnock Region.