Irvine quits after missing out on Rio

Martyn Irvine says failing to qualify for this year's Olympic Games is a "massive" factor in his decision to retire from competitive cycling.

Irvine became the first Irish cyclist to win a world track title in 117 years with victory in the scratch race in Belarus in 2013.

The Newtownards man reflected on the highs and lows of his track career.

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