The story of the rainbow jersey 2023 UCI Cycling World Championships
Nerding Out: Is the Rainbow Curse Real in Downhill? - Pinkbike
Meet Oisín O'Callaghan, the downhill boy racer at home in cycling's rainbow jersey – The Irish Times
Rooted In Ireland – The Greg Callaghan Story
Downhill World Championship: Thrice a Rainbow for Loic Bruni – 100%
Oisín O'Callaghan Downhill World Championships
Oisin O'Callaghan - Fit4Racing
Meet Oisín O'Callaghan, the downhill boy racer at home in cycling's rainbow jersey – The Irish Times
Oisin O'Callaghan wins mountain bike world championship downhill junior title – The Irish Times
The history and the records of road's rainbow jersey
Greg Callaghan recalls his rise from ten year old racer to one of Ireland's mountain biking elite - Irish Mirror Online
Downhill World Championship: Thrice a Rainbow for Loic Bruni – 100%
Downhill World Championship: Thrice a Rainbow for Loic Bruni – 100%
Why the World Champion's jersey is rainbow