The wheels keep turning for Citi Bike and this summer more residents in Manhattan and Brooklyn will get the chance to hop on the blue bikes.

Mayor Bill de Blasio and Motivate — the company that operates Citi Bike — announced Thursday that the bike share service will expand once again starting in August.

This new expansion, which will add about 140 docking stations, is expected to stretch service further north in Manhattan to 110th Street and in Brooklyn it will reach out to the neighborhoods of Boerum Hill, Cobble Hill, Carroll Gardens, Gowanus, Park Slope and Red Hook.

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"The recent growth and expansion of Citi Bike is great for New York City, and something we are proud to have helped secure," de Blasio said. "My former neighbors in Park Slope will certainly welcome the blue bikes this summer, and their arrival in transit-deprived neighborhoods like Red Hook illustrates our continued commitment to strengthening all of our communities and fighting inequality.”

In total Citi Bike will have more than 600 docking stations and 10,000 bikes by the end of 2016.

Last year, the bike share program saw its busiest year with more than 10 million total rides taken. Currently, the program has over 100,000 annual members.

“This year Citi Bike is getting bigger and even better,” said Jay Walder, president and CEO of Motivate. “We are connecting the city like never before. And as we expand to new neighborhoods, we continue our efforts to invite more and more New Yorkers to try this healthy, convenient and fun way to get around.”

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To add more bikes to areas that already have stations, the Department of Transportation and Motive will bring close to 42 additional stations. Such areas include the Upper East Side and Upper West Side. More stations will also be added to areas planned for later this year and 2017.

Last year, plans were announced to double the size of the program from 6,000 to 12,000 bikes by 2017. Currently, stations are located below 86th Street in Manhattan, Long Island City in Queens and in the Brooklyn neighborhoods of Bedford-Stuyvesant, Brooklyn Heights, Fort Greene, Clinton Hill, Downtown Brooklyn, DUMBO, Greenpoint and Williamsburg.