Having grown up in the North Island and riden around teh south Island about 8 or 9 times I read this article with interest
It omitted some of the better roads, for the north island I would have added anywhere around the coromandel peninsula and in particular the Kopu Hikuai road, possible the best bit of riding in the north island.
I would have also put a caveat on the east coast recommendation, whilst its great scenerty its also infamous for the local gang culture, and its not uncommon for people to feel a little less than welcome in some of the rural hick towns
South Island completely missed the Arthurs pass which is a truely stunning road and scenery, also missed the manitoto valley aka the pig route which is well off teh tourist trail
The article also failed to mention the issue of motorcycle theft, unless things have changed its a very real isue and problem far worse than the uk or western europe
South Island is pure magic, virtually impossible to find a bad place to ride
North Island not so great, parts of it my wife described as Lincolnshire with hills, there is a lot of mundane back country that can not be avoided to get from a to b
If time is limited my recopmmendation is to spend all of your time in the south island
North Island has some good bits, as Kiwi says, the Coromandel Peninsula loop is a good ride, The forgotten highway to Whangamomona is a bit twisty to get any good flowing progress going but it is not that bad, and I can think of worse ways of getting from A to B than the Waioeka Gorge from Gisborne to Opotoki.
But I have to agree that South Island is “as good as it gets”, empty roads, spectacular scenery, maybe a bit of rain now and then, but it is definitely worth putting up with the long flight to get there.
You need 3 weeks minimum!
I have to make do with just over 2 weeks when I go and it is never enough. Good excuse to back again though.