The main event is a 24-hour bicycle relay race spanning the whole city, surrounded by the crowd during various music concerts and parties.
Approximately, 2000 students are involved in the organisation of Les 24 heures vélo de Louvain-la-Neuve.
[1] The 2009 edition, taking place from 21 to 22 October,[2] was attended by more than 40,000 people.
[3] One particularly serious accident left a young man at risk of paralysis after a fall.
About 40,000 people attended, but it was relatively trouble-free, with only 23 arrests, less than the previous year.