18:50Sporting WitnessJapan's Keirin cycling phenomenonBBC World Service Duration: 9 minutes Sat 9th Oct 2021, 18:50 on BBC World Service East AsiaAvailable for over a yearListen nowHow the uniquely Japanese track cycling event made its Olympic debut in 2000. Show more GenresSportFormatsMagazines & ReviewsBrandSporting Witness Source: BBC Online