Pro cyclists average 400 to 500 miles per week during peak training season. During the off season, cyclists typically cut back to an average of 250 miles per week.
Most stage races pro cyclists compete in average 500 to 650 miles a week. A typical Tour de France averages 2,200 miles over 21 days of racing. Pro cyclists focus more on time of riding, rather than distance, beginning at a minimum of 30 hours a week.
Pro cyclists train to sustain a certain output of watts over a period of time. The training is aimed at improving endurance, strength and speed.