If you are planning to visit Big Apple, you will have the chance to travel around the city by bike. Like many other things in New York, it won’t be free. Citi Bike is something like ZipCar for bicycles, though the pricing model is a bit different: You pay a $95 annual fee and then get as many 45-minute bike rides as you can take, from station to station, throughout predetermined locations in Manhattan, Brooklyn and Queens. Another difference with Citi Bike is that tourists can take advantage of the program by paying for 24-hour access or 7-day access (30-minute riding intervals). Thus far the map looks pretty comprehensive for downtown Manhattan and Brooklyn, though some of these may change:
Citi Bike will be the largest bike share system in North America, with 600 stations and 10,000 bikes.
source:http://iloboyou.com