[clonak]

Yes its a safety inspection.
Its a 6 monthly inspection here. Unless your vehicle is under 6yrs old then it is yearly. Registration can be 3/6/12 months, depends how much you want to pay at the time. Currently $414.53 a year for motorbikes under 600cc. You dont want to know how much it costs for motorbikes over that.... :/

The NZ govt knows how to sting ya.

*edit, wrong price...