"We are really excited about the races; they are all off-road using the fantastic mountain bike tracks that the Wanganui Mountain Bike Club have done an amazing job to develop, and which more and more people are using.
"Everyone of differing levels of ability will be able to compete and we are aiming at providing a really fun event for everyone."
The triathlon event in April was won by Palmerston North's New Zealand schoolboy triathlete representative Jake Jackson-Grammer, with Wanganui policeman Jason Page only 15 seconds behind.
Holmes said a thank you needed to go out to plantation company ErnslawOne and to Ngati Apa for giving their approval to use the forest and land.