The city’s Transportation Department said on Sunday that more than 2,700 24-hour subscriptions had already been sold, along with 182 seven-day passes. More than 27,000 people have signed up for an annual membership.

Officials said that from Saturday at 5 p.m. to Sunday at 5 p.m., the program recorded 14,933 trips, the most of any such 24-hour period to date. More than 65,000 have been taken in total since the opening.

Already, some trends seem to have emerged. The city has compiled figures on some of the most popular stations, which include one at West 31st Street and Eighth Avenue and a few near Union Square. Users also appear to have adopted parts of the unspoken bike share language from other cities: If a bike is not working properly, some riders have taken to turning the seat around as a signal.

And in a fit of urban guile more likely to affect gym memberships than program memberships, some New Yorkers seem to have identified the newest, cheapest way to tone their lower bodies: hop aboard the seat and pedal in place — with the bikes still locked — as if the stations were rows of exercise equipment.

The first week of bike sharing also had some problems: the first crash, after a rider was struck by a sport utility vehicle car on Macdougal Street at Houston Street, though an official said the rider’s injuries were not thought to be serious; the first theft, when a bike was swiped during last-minute station loading before opening day; an apparent act of vandalism that damaged a kiosk on Rivington Street, temporarily shutting it down; and a series of technical glitches that seemed to persist through the weekend, as several riders reported difficulties checking out or returning bikes at certain stations.