Change Bike – the lightest full-size folding bike by B. Fold. Posted on August 29, 2014 29 Aug Change Bike’s double-lock folding frame, high end components and lots of just plain cool features make this the high-end folding bike to own. Popular in Japan and Australia. Available at in North America at Bike Fold. 30 Years of Dahon Folding Bicycles Around the World on a Folding Bike