Register your Mastercard via the link above to get the free certificate.
“-Citi Bike is New York City’s bike sharing system. Intended to provide New Yorkers and visitors with an additional transportation option for getting around the city, bike sharing is fun, efficient and convenient. With thousands of bikes at hundreds of stations around New York, Citi BikeSM is available for use 24 hours a day, all year ’round. You must be 16 or older to ride a Citi Bike.
-Select 24-Hour Access Pass option at any Citi BikeSM station kiosk then swipe your credit card and enter your gift certificate number when prompted.
-Gift certificate number expires on October 31, 2013.”