Denver's B-cycle bike share program has been growing ever since it began in 2010.  They've added more bikes and more rental stations, and now they're expanding into the part of the year when the bikes used to be in storage.   It's part of B-cycle's plan to become a year-round workday transportation option for metro area commuters.  Interim Executive Director Nick Bohnenkamp talks with CPR's Mike Lamp.  [Photo courtesy Denver Bike Sharing]