Harry Reynolds - known as the Balbriggan Flyer.
Harry Reynolds, born Balbriggan, 14 December 1874, known as the Balbriggan Flyer, was the first Irishman to win the world championship in cycling. He accomplished this at the 1896 ICA Track Cycling World Championships in Copenhagen.
Also, legend has it he was known to race the steam train from Balbriggan to Skerries as part of his training regime.
Picture from the Martin Fanning Collection.