Sepp Kuss is an American professional cyclist who has transitioned from a collegiate mountain biking champion to a Grand Tour winner, known for his climbing prowess and crucial support for team leaders. After securing three national collegiate championships in cross-country (2014, 2015) and short track (2014) while attending the University of Colorado Boulder, Sepp Kuss transitioned from collegiate mountain biking to become a Grand Tour-winning professional cyclist. His exceptional road cycling talent became evident in 2016 with a notable stage win at the Redlands Bicycle Classic, where he outpaced former UCI WorldTour riders. This performance, along with a strong showing at the Tour of the Gila, led to him signing with Rally Cycling in mid-2016.
This monumental win made him the first American to win a Grand Tour since 2013 and solidified his position as a Grand Tour champion. His victory also contributed to an unprecedented sweep of all three Grand Tours for his team in a single season, and he became the first cyclist to ride all three Grand Tours and win one in the same season since Gastone Nencini in 1957. Continuing his strong performance, Kuss achieved an overall victory at the Vuelta a Burgos in 2024. Despite his recent Grand Tour triumph, he has expressed an intention to return to a support role for his team in 2025, underscoring his versatile capabilities and commitment within professional cycling.