Hansen was the first international level female sprinter to be recruited in the ranks of Cycling New Zealand's national programme.

The programme was the forerunner to the current women’s sprint programme, which now has six riders.

Hansen leaves the programme as one of the longest serving and most experienced members.

"After a long career representing New Zealand, I have decided to take a break from cycling as I have suffered many injuries and health issues in recent times," Hansen said.

"I would like to thank Cycling New Zealand and the coaching staff over the years for their guidance and support, and I wish the team well in their preparations for Tokyo and beyond."

Hansen secured three medals at the Gold Coast 2018 Commonwealth Games.

She earned silver medals in the team sprint and sprint events and bronze in the keirin competition.

She has also secured podium finishes on the International Cycling UnionTrack Cycling World Cup circuit, as well as earning Oceania and national titles.

Hansen also represented New Zealand in the Olympic Games at both the London 2012 and Rio 2016.

Jacques Landry, Cycling New Zealand chief executive, paid tribute to Hansen.

"Natasha is part of the generation of riders that helped transform the New Zealand track sprint cycling programme from an amateur endeavour into the professional team it is today," Landry said.

"We are grateful for her contribution and we wish her well for her future."