"These are our best young talent that have an opportunity to press their claims for the future and potentially through to the Rio Olympics in 2016 and beyond."
Olympians Marc Willers, Kurt Pickard and silver medallist Sarah Walker are all taking a break following London. Willers is building again for racing in the US national series, Walker is taking a rest while Pickard is recovering from injury.
It is the first World Cup elite competition for Jones, the North Canterbury teenager who was fifth in the junior elite class at the world championships this year.
American Connor Fields is the Supercross points leader in the men's competition after two wins this year and faces world champion Sam Willoughby (Aus) and compatriot Dave Herman in the race for overall series honours.
The women's overall honours will be a battle between leader and world time trial champion Caroline Buchanan (Aus) and world champion Magalie Pottier (Fra), with Great Britain's Shanaze Reade making a rare appearance.
The riders have time trials and qualifying tomorrow and elimination racing tomorrow (NZT).