The 2013 TD Five Boro Bike Tour is the biggest bike ride in the U.S. More than 32,000 cyclists ride 40 miles over five bridges with absolutely no worry about cars, and more than 10,000 riders an hour cross the FDR alone during the peak of the race. The tour starts in Lower Manhattan and goes through Central Park, Harlem, back down the FDR to Queens and Brooklyn, finally taking the Verrazano-Narrows to Staten Island for a festival. All skill levels are welcome, and if you can’t make it all the way, there are vehicles to pick you up. If regular registration is sold out, check the website for opportunities to ride for charity. And if you can’t ride, the tour requires over 2,000 volunteers.

Sun., May 5, 7:45 a.m., 2013