The World Series of Bicycling is the premier cycling series in the world. Since 1974, the Lehigh Valley has been home to the greatest local and international cyclists in the world. In past years, as many as 19 different nations have been represented and multiple Olympians have taken part in the World Series of Bicycling. No other venue in the region offers such high caliber action at such an affordable price in a family-friendly atmosphere. Fireworks!