- Pedal-ins and car burials: what happened to America's forgotten 1970s cycle boom? ‘Bicycle madness’ once saw US bike sales outstrip cars, and spawned ambitious plans for 100,000 miles of cycle paths. Then the music stopped https://www.theguardian.com/cities/2017/jun/16/pedal-ins-patchouli-bikeology-americas-forgotten-1970s-cycle-boom 9 comments politics