Passage Summary: Tour de France winners are physically unique, usually having huge lungs and strong hearts. Last year's winner didn't have a strong heart, so the author concludes he must have the huge lungs instead.

Conclusion: The winner of last year's Tour de France must possess exceptional lung capacity.

Reasoning: All winners of this race have abnormal physiological traits, typically including exceptional lung capacity and powerful hearts; however, last year's winner was found not to have an exceptionally powerful heart.

Analysis: The argument assumes that because the winner lacks one 'typical' abnormal trait, he must possess the other one mentioned. This is a classic false dilemma; the author overlooks the possibility that the cyclist's 'abnormal physiology' could manifest in a third, unmentioned way. Look for an answer that points out the cyclist could be abnormal in some other way that doesn't involve a powerful heart or exceptional lungs.