Bicycling is also for people that already find it way more convenient/enjoyable/cheaper/faster/ to move through a city. The incentive is not only on gas price,

Bicycling is also for people that already find it way more convenient/enjoyable/cheaper/faster/ to move through a city. The incentive is not only on gas price, but on the whole experience, where the environment/infrastructure play a lot. Architecture governs. When moving/parking your car is slow, complex, expensive, whereas using a bike (be it powered or not), public transportation or your feets is not, depending on your travel, the choice is quickly made. Some cities are rearchitecting around this whole experience. Paris, Nantes (for those I know well) have been doing this for several years already, and it's a long, painful process for everyone and every business, but that definitely feels like a good thing.