A Folding bike is the perfect solution for anyone who is short on space, or needs a bike to be very portable. Made in a variety of wheel sizes, ranging from 16" to 26" wheels, a folding bike "folds" when you need it to. This means that you can ride your bike to the train or bus stop, fold it up, take it with you, get off the train or bus, unfold it and ride directly to your destination. Folding bikes are also ideal for those living in apartments, dorm rooms, or for taking on airplanes and RVs. More information about Choosing a Folding Bike Size.