<Tr> <Th> Established </Th> <Td> 1977 </Td> </Tr> <Tr> <Th> Official site </Th> <Td> bikenewyork.org </Td> </Tr> <P> The Five Boro Bike Tour is an annual recreational cycling event in New York City . It is produced by Bike New York . Conducted on the first Sunday of May, the 40 - mile (64 km) ride includes over 30,000 riders . The route takes riders through all five of New York's boroughs and across five major bridges . The entire route, including bridges and expressways which normally prohibit cyclists, is closed to automobile traffic for the ride . </P> <P> The event began on June 12, 1977 as the Five Boro Challenge with about 250 participants on an 80 - mile course . </P>

How many miles is the 5 boro bike tour