This article reflects on the diagnosis proposed in 1998 by Moravcsik and Nicolaidis that the EU had reached an incipient constitutional settlement and makes two connected arguments. First, analytically, that contrary to the prevailing view, the EU's constitutional settlement is holding, although it has come under assault from federalists and sovereignists alike. The bicycle theory nevertheless continues to hold sway perhaps because paradigm shifts always exhibit significant lags. Second, normatively, to defend ‘the equilibrium’ does not amount to a defense of the status quo. On the contrary, and especially in the context of the eurozone crisis, we must reflect on the social foundations of the European project, of which intermittent democratic discontent is only one expression. The argument unfolds through four European cities, each regarding a different moment in the Constitutional saga of the last two decades, to conclude on the relationship between LI and demoicratic theory, as well as the promise of sustainable integration.