Cox, Peter2015-06-012015-06-012015-10Cox, Peter. (2015). Object in focus:The cargo bike. Viewpoint, 2015, 1071751-8261http://hdl.handle.net/10034/556116This is the author's accepted version of an article published in Viewpoints and included with kind permission of the British Society for the History of Science. Illustrations courtesy of Deutsches Museum, MunichTwo images of carrier tricycles, built almost a century apart. The first is from a 1912 catalogue in the archives from the Deutsches Museum in Munich. The second is a Christiana Bike from a recent catalogue. At a glance, they appear to show remarkable continuity, even the longevity of a single technological artifact. But their histories tell hidden stories of social change, in shops and shopping, of counter-culture and alternative lifestyle, and of the convergence of environmental sustainability and economic efficiency in the 21st century.encyclingcargo bikesbicycle historyArticleViewpoint