In June 2011, the ultra-athlete Nico Valsesia rides for the 4th time the Race across America, crossing the United States by bike from the West to the East Coast in 9 days in what is considered the toughest endurance race in the world.
Overview：In June 2011, the ultra-athlete Nico Valsesia rides for the 4th time the Race across America, crossing the United States by bike from the West to the East Coast in 9 days in what is considered the toughest endurance race in the world.
