With the Netherlands having the world's highest cycling rates, many see its current cycling policies as a model for the transition to sustainable transportation systems. Understanding these high cycling rates, however, requires understanding the geographic, historical, and institutional context in which social movements, working with government actors, helped stop a rapid decline in cycling rates between the 1950s and the 1970s in the Netherlands. This article uses historical sources and interviews with activists and government actors to show how social movements supported cycling by helping reverse the negative effects of rapid motorization. These social movements worked with government actors to implement three specific innovations: the woonerf, the bottleneck memorandum, and the car-restricted city center. This article contributes to transitions literature by looking beyond the relationship between enterprise and the state and demonstrating how social movements within a specific institutional context and with broad public support can advance sustainable transportation innovations.