Career
He previously rode for the An Post–M.Donnelly–Grant Thornton–Sean Kelly team He moved to France to pursue his cycling career at the age of 17, riding as an amateur for four years, before turning professional in 2003. He missed most of the 2009 season due to a family illness.
Gallagher established the coaching firm Dig Deep Coaching in 2011.
He was technical director of the Northern Irish team for the Gran Partenza of the 2014 Giro d"Italia.
