In-form American Aaron Gwin, chasing a third straight World Cup win, was fastest in qualifying ahead of opening round winner Greg Minnaar of South Africa.
The final is set for Monday (NZ time).
Meanwhile, organisers have stiffened up the crosscountry course to make the traditionally tough and technical terrain even more testing with a harder opening climb.
Leading the way for New Zealand is Rotorua-based rider Samara Sheppard, who is enjoying an outstanding season with a fourth and third placing in her last two world cup races in the women's under-23 division.
Brad Hudson (Christchurch), Tom Bradshaw (Wellington) and Mathew Waghorn (Palmerston North) will contest the men's under-23 class, while Oceania champion Amber Johnson (Rotorua) and Samantha Hope (Dunedin) will race in the junior women's race, all set for Sunday (NZ time).
World championship medallist Anton Cooper returns to world cup action in the junior men's division after winning the opening round in South Africa two months ago.
The Christchurch-based Trek World Racing rider will be joined on Monday (NZ time) by fellow Kiwi juniors Nigel McDowell (Rotorua) and Tom Filmer (Nelson).