The development of the motorcycle closely follows that of its human-powered version, the bicycle.  Both predate the automobile, and both are important to the collections of a transportation museum.  The Crawford Museum's motorcycle collection, while modest, does represent a cross-section of motorcycle types in transportation history, ranging from very early models, including a rare Cleveland Motorcycle, to big foreign-built motorcycles of the 1950s, when the American market was dominated by British-built bikes and homegrown Harley-Davidsons.  As motorcycles continue to be an important mode of transportation and personal expression, the Crawford Museum will continue to collect them.