Велоспорт трек. Школа японского кейрина

"Keirin (競輪 / ケイリン, [keːɾiɴ])– literally "racing bicycle" – is a form of motor-paced cycle racing in which track cyclists sprint for victory following a speed-controlled start behind a motorized or non-motorized pacer. It was developed in Japan around 1948 for gambling purposes and became an official event at the 2000 Olympics in Sydney, Australia."