Adrenalyn Motorcycles - specialists in Imported Japanese road bikes, ATVs and Scooters

After you've held a learner licence for at least six months, you can go to a
driver licensing agent and apply for a restricted licence.

You will need to pass a restricted license practical test.

If you hold a restricted motorcycle licence, you must adhere to the following conditions:

You must not ride between 10 pm and 5 am.
You cannot carry a passenger.
You must not ride a motorcycle with an engine capacity greater than 250cc.
You must always carry your restricted licence when you're riding.
If you are under 20, your legal alcohol limit is still the same as it was on your learner licence. To be safe, you should not drink anything before you ride.

For detailed information refer Land Transport NZ site

You must hold your restricted licence for a minimum period of 18 months before you can move to a full licence.