Saturday's course at Waimiha will be a puzzle for the competitors.
"We've raced the nationals here before but about a quarter of it will be fresh trails," said event organiser Gary Powell.
"I have been hard at work clearing trails, cutting new tracks through the pines and clearing windfalls. It will be a very technical course.
"It will be about 120km of riding, including five 6km special tests that will really sort the men from the boys.
"It will be interesting to see who copes best but the title may go down to the wire at the final round in Taupo on July 21.
"Consistency will be the key and it may be that the eventual outright winner won't even have a round win to their credit."
There will certainly be a new champion this year because 2011 champion Mead is expected to be absent on Saturday as he has overseas racing commitments.