Mr Dodd said it was a big decision everyone on the trust was excited to support.
"The festival is in its sixth year so it's important we keep it fresh and exciting. Hosting it in spring, when there's room on the calendar and people are full of enthusiasm for the summer ahead, will add a real spark to the celebration and the city as a whole.
"We are fortunate in Rotorua to have busy summers already full of activities, so an October festival will enable greater participation and spectating."
The 2018 festival will open on Labour Weekend and run for 10 days through to Sunday, October 28.
Feedback on the new dates had been positive.
Owner of the 2W Gravity Enduro series, Neil Gellatly, supported the move.
"With the Whaka100 on the first weekend, Giant 2W Gravity Enduro on the last, and all manner of things in between, it'll be a big 10 days in Rotorua."
The annual event is held over 10 days and included around 30 individual events and attracted around 6500 cyclists and countless spectators.
The Rotorua Bike Festival is a charitable trust which currently has seven trustees including incoming chairman Jonathan Dodd and newly appointed trustees Mead Norton and Michael Mansell.