Belgrade, Serbia. 13th May 2017. SERBIA ULTRA 6-12-24 twenty-four hour ultra-marathon cycling race held in Serbia for the first time. It's the ultimate test for those who want to challenge their physical and mental endurance against other competitors. The winner is determined by the distance they can pass in six, twelve or twenty-four hours at the Kosutnjak forest-park track. Credit: Bratislav Stefanovic/Alamy Live News

---

Size: 5184px × 3456px
Location: Kosutnjak, Belgrade, Serbia
Photo credit: © Bratislav Stefanovic / Alamy / Afripics
License: Licensed
Model Released: Yes

Keywords: 6-12-24, adult, belgrade, bicycle, bicycling, bike, caucasian, challenge, competitors, cycling, cyclist, day, endurance, energy, europe, exercising, exterior, fitness, forest, healthy, helmet, kosutnjak, lifestyle, location, male, man, marathon, middle-aged, motion, movement, occupation, outdoors, park, pedal, portrait, race, racing, recreation, ride, rider, riding, serbia, skill, sports, sportsman, track, training, ultra, ultra-marathon, wheels