Complex sentence: It was the start of stage 16 of the 2011 Tour de France, to Gap, as well as the start city for stage 13 of the 2012 Tour de France, to Cap d'Agde.
Split into simpler sentences: It was the start of stage 16 of the 2011 Tour de France, to Gap. It will also be the start city for stage 13 of the 2012 Tour de France, to Cap d'Agde.