£0 - £5000
He broke his back in 2009 after falling 35 feet (11 m) when forced into an emergency landing whilst paragliding
Following his accident Colbourne began cycling through Disability Sport Wales.He competed in the C1 classification for riders on upright bikes with the most severe disability. He trained with disabled cycling coach Neil Smith at the Newport Velodrome and made his first appearance in a track race in May 2010 at the Wales Grand Prix.
He was selected as part of the cycling team for Great Britain at the 2012 Summer Paralympics. On 30 August 2012 Colbourne won a silver medal and Great Britain's first medal of the 2012 Paralympics, in the C1-3 1 km time trial On 31 August 2012 he won a gold medal in the C1 3 km individual pursuit after breaking the world record in both the qualification round and the final.
Colbourne was appointed Member of the Order of the British Empire (MBE) in the 2013 New Year Honours for services to cycling.In August 2013 Colbourne announced his retirement from para-cycling