By eHow Sports & Fitness Editor
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Though it remains the premier event in all of cycling, the Tour de France has recently been rocked by a series of doping scandals. The incidents have shed light on the rules governing the race, and ways in which competitors can be disqualified from the Tour. If you're lucky enough to compete in the Tour de France and want to avoid disqualification, make sure you know all the rules and the penalties for breaking them.
eHow Sports & Fitness Editor