 British Cycling, the sport's governing body, claimed that over "two million people across the country now cycle at least once a week, an all-time high".Halfords, responsible for a third of bikes sold in the UK, reported an increase of sales of 11% up to March 2015.Much attention has been given to the so-called mamils, middle-aged men in lycra, but many customers are younger men, and the most rapidly growing group is women.