As a history of streets from the saddle, this talk examines how bicycles shaped everyday rule and colonial mobility in Indonesia. Drawing on Reza's article-in-progress, it traces how the bicycle, a modest technology, became central to decisions about who could move, at what speed, and in which part of the road. Following David Arnold’s notion of “modest modernity”, the bicycle is treated as an everyday machine that carried heavy political weight. Newspapers, police ordinances, popular traffic manuals, and military cycling regulations reveal a fine-grained “street sovereignty” that worked through lamps, bells, lanes, and drills.