After trying cycling 'for a bit of fun' when the Wales National Velodrome Newport opened its doors Risca-born Harrison has rapidly made a name for himself as one of Wales' most exciting prospects on the track.

Joining his first club, Cwmcarn Paragon at the age of 13, Sam went on to win countless events at the U16 British National Track Championships and was selected to represent GB at the Cyclo-cross World Championships in 2008.

He stormed to silver in team pursuit at the European Junior Track Championships in 2009 which was swiftly followed by a bronze in the Madison.

2010 was a turning point year for Sam; he was selected to represent Wales at the Delhi 2010 Commonwealth Games and went on to finish in fourth place by just an inch in a nail-biting Points race. Shortly after his return to the UK he made the move into full-time cycling with the British Cycling Academy Programme in Manchester.

Next came a gold medal in the Men's Omnium at the Beijing Track World Cup, a fantastic result for such a young rider.