Minneapolis is the City of Bikes. There are more bikes here per capita than any other US city, I’m told. Many Japanese cities have more bikes per capita and even less room, so the whole bike parking issue in Japan is pretty severe. And, as usual, Japanese culture allows for more flexibility in technological solutions than American culture does (a limitation that I don’t think Americans realize they are living with).
Anyway, here’s how to deal with bikes in an urban setting with less and less available bike parking space and more and more people on the bikes: