 During the 2003 Tour de France, Lance Armstrong was riding with Iban Mayo at the start of the climb to Luz Ardiden when Armstrong crashed, bringing Mayo down with him.The fall was caused when Armstrong caught the handlebar of his bike on the strap of a spectator's bag.Jan Ulrich, who was riding just behind Armstrong and Mayo, avoided the crash, and in an act of chivalry he slowed to wait for the fallen riders.