More than 1,500 participants took to around 300 stationary bikes in the Luxexpo convention centre on Sunday morning, united in an ambitious effort to promote organ donation and push the limits of endurance.

The event, organised by Luxembourg Transplant, marked the 17th edition of the annual 'Indoor Cycling' challenge, which this year aimed to set a new Guinness World Record for the longest distance cycled collectively indoors in eight hours.

The official target set by Guinness World Records required the group to surpass 15,000km, a figure they quickly surpassed. A Guinness World Records adjudicator was on site to review and certify the attempt.

Organisers set their sights far higher than the official minimum: their goal was to collectively cover 40,000km, or the approximate circumference of the Earth at the equator, within the allotted eight hours.

After the final kilometres were tallied shortly after 6.30pm, the results were clear: The participants had cycled an impressive 44,614km, far exceeding both their own target and the official world record requirement.

While the sporting achievement was remarkable, the event's central aim remained clear: to highlight the importance of organ donation.

Timed to coincide with World Organ Donation Day on 17 October, the initiative was designed to raise awareness, encourage public discussion, and motivate people to consider becoming organ donors.

The need for organ donors in Luxembourg remains high. Currently, around 100 people are waiting for an organ transplant in the country.

Last year, there were a total of 154 patients in Luxembourg hoping for a suitable donor, and through international networks, 43 residents were able to receive life-saving transplants.