I got an ace days riding in at Rotorua after 6 days snowboarding in Wanaka/Queenstown last year.
The trails were great and super flowy. I ended up being shown round by one of the guys who had a trail named after him – the tickler, friendly chaps, the split enz trail is worth checking out too if you go.
I think there’s quite a lot of hire choice in the town, but I went for convenience & hired a beat up GT hardtail from a couple in the carpark, it was reasonably priced and did the job – but the couple are a bit weird and complained I brought it back too late, even though they hadn’t specified a time? I didn’t think I’d taken the michael, so no harm done.
After riding relaxed in the open air Polynesian Hot pools over looking the lake – Ace.
http://www.riderotorua.com/index.php
You can pick up trail maps from a big bike shop in town.
It’s a beautiful country, where ever you go you wont go wrong.
Enjoy!