For GCN Presenter Conor Dunne's first ultra endurance length race, he thought he'd take on one of the toughest, the Donegal 555. Riding solo and against the clock, Conor is embarking on a 555 kilometre ride along one of the most exposed coastlines in the world, the Wild Atlantic Way. He'll be battling ferocious climbs as he puts himself through one of the most challenging physical and mental battles of his life.
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