The bike, built by engineer Lindsay Ash and Jeff Anderson from Kiwibikes, is made from solid steel, drain pipes, and a motorbike seat. It has been turning heads.
"It has been attracting people's attention, people stopped at the lights look up and notice it," Mr Fraser said.
Rotorua Visitor Centre and i-SITE manager Graham Brownrigg said the interest from Crankworx was growing, and accommodation was thinning out.
"We haven't yet noticed any particular increase in physical numbers through our doors in the lead-up to Crankworx. However, accommodation enquiries and bookings to date have been strong for the latter part of this week, indicating a growing interest in Crankworx.
"So far our i-Site team has been able to find accommodation for most visitors but we anticipate room availability becoming increasingly tight as Crankworx gets under way, especially this weekend.
"There's certainly an exciting buzz building around this event."
Abracadabra Cafe owner Nadia Goldbert has been extra busy with those in the area for the event visiting the cafe and bar.
"It has been busy, we have had a lot of riders coming in at dinner time over the last week, they've been telling their friends so we've been having that crowd.
"Hopefully it will be really good, there's so many people around town ... our private function bookings are booked all week. It is so great that it has come to town."
NZO owner Gary Sullivan has extended the shop on Amohau St's opening hours to 9pm every day to accommodate mountain bikers who need gear.
Rotorua Association of Motels chairman and Pohutu Lodge owner Barry Mabey said Rotorua motels were already busy.
"We are packed out, a number of people are not - it's a little bit of a funny one. But it is a little bit hard to gauge whether they are from Crankworx or not.
"Town is definitely feeling the effects of it, it is a good thing."