It will remain up until Sunday afternoon.
Tutanekai St is closed to traffic at Haupapa St, however it can be accessed from Arawa St for those visiting Lakes Primecare.
Simpson said a lot of people were already in town and there was a great vibe already, with riders from all over the world enjoying the city.
Festivities begin tonight with Filmed by Bike - a selection of short bike film shorts - in the marquee. Entry is by donation with all money raised going to Lifeline. The charity is the main beneficiary of the event this year, which aims to raise suicide awareness.
It begins at 7pm and all are welcome.
Registration will happen tomorrow with the race starting at 10am on Saturday, followed by a party at the Pig & Whistle, which will also host a breakfast on Sunday morning.