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Oisin O'Callaghan YT Mob

OISIN O'CALLAGHAN

PROFESSIONAL MOUNTAIN BIKE ATHLETE

Double O 100 | Oisin O'Callaghan Logo
About

Double O

Oisin O’Callaghan, also known as Double O, is a 22-year-old Professional Downhill Mountain Bike Athlete from Limerick.

 

Oisin holds the accolade of not only Ireland's first ever rainbow jersey in a mountain bike discipline, but he was the first ever Irish World Cup winner in an elite mountain bike category. 

 

As he travels the world competing in the UCI Downhill World Series, he is currently one of the fastest mountain bike riders on the planet.

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Oisin O'Callaghan UCI World Cup Series Bielsko Biala Poland May 2025
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