Bike culture is exploding in cities across the world. Whether people are riding folding bikes to the commuter train, slipping through traffic on streamlined single-speeds, or carrying children and groceries on their cargo bikes, bicycles are making urban life more dynamic and enjoyable. Cargo bikes â specialty-form or retrofitted â are a good option for cycle commuters who want to fully replace the car with green transportation that works for everyday life. In this excerpt from On Bicycles: 50 Ways the New Bike Culture Can Change Your Life (New World Library, 2012), Finley Fagan explains the different kinds of cargo bikes and their benefits.