The number of rides on Madison’s B-cycle bike sharing system tripled in 2012, according to Madison B-cycle.

A group said annual membership also grew to 2,150 with the largest growth among University of Wisconsin students. It’s the fastest growing B-cycle system in the nation based on the number of miles traveled, according to Madison B-cycle management.

“Growth during rush hours and in the university segment this year really reinforced that it’s catching on for commuters,” said Claire Hurley, Madison B-cycle Manager.

During 2012, Madison’s B-cycles were ridden over 94,000 miles on 63,325 trips around Madison.

Five new stations were added to the system in August, primarily to address the growth in use by university students and employees. The expansion brought the total number of stations in the city to 33. There are 290 B-cycles in circulation.

B-cycle managers expect the addition of two stations and 30 new bikes in 2013.

Madison B-cycle suspended service for the winter starting Dec. 14 and is scheduled to resume in March, weather permitting.