Just stupid or self appointed speed police

[Max Preload]

There's no legal requirement to stay left on motorways or dual-carriageways in NZ, and even if their was, it wouldn't be enforced.

Yes there is. Someone else already linked to it.

Section 2.1(3) of the Land Transport (Road User) Rule 2004

A driver may drive in the right lane in the direction of travel when driving on a multi-lane road if—
(a) the driver is turning right, or making a U-turn from the centre of the road, and is giving the prescribed signal of that driver's intention to turn right; or
(b) the driver is passing; or
(c) the left lane is unavailable to the driver; or
(d) the driver is required by any provision of this rule to drive in the right lane; or
(e) a variable lane control downward-facing arrow sign indicates that the driver must drive in the right lane; or
(f) the driver is avoiding an obstruction; or
(g) the traffic in all other lanes is congested; or
(h) the traffic in every lane is congested.

[Berries]

The word “may” is the operative word here. You “may” do this, does not necessarily imply that you “must not” do something else.

The only clear part in the Road User Rule regarding this is what I posted earlier from Section 2.8.

2.8 Passing on left
(1) A driver must not pass or attempt to pass on the left of another vehicle moving in the same direction except in accordance with this clause.
(2) In any case in which the movement referred to subclause (1) may be made,—
(a) the 2 vehicles must be in different lanes; or........

This clearly allows undertaking on multi lane roads, implying that it is not an offence to drive in the right hand lane. Lane discipline here is crap, but that is the view of someone from England where the law is quite clearly different.

Back to Keep Left Unless Passing signs. MOTSAM states that they “must” be used where an additional lane is provided for the overtaking of slower vehicles over a limited length of road, in other words passing lanes. It also states that they “may” be erected elsewhere on multi lane roads where such reminders are required. Because the sign is classed as a Regulatory sign it should be complied with, therefore where the signs are used it is an offence to drive in the right hand lane, unless passing, but it is still not an offence to undertake due to 2.8 (2)(a). Not sure what precedent codes are used, but that is my understanding of the legislation, even though I keep left unless passing on the motorway myself and happily undertake every day.

[superman]

Maybe it's just me, but if I'm on a many lane road which are usually long and boring straights it's sometimes nice to have a cage to negotiate myself around. Something to do, really it takes no effort on the bike and it's almost always possible to find a gap to shoot through unlike when you're held up behind these fullas in your own cage.

[Berries]

For the same reason, I hate passing lanes. If I see cars ahead of me I think great, some fun. If I see an empty road I think of boredom.

[scumdog]

For the same reason, I hate passing lanes. If I see cars ahead of me I think great, some fun. If I see an empty road I think of boredom.

You're on a motorbike - how CAN you be bored??

[oneofsix]

You're on a motorbike - how CAN you be bored??

Try riding Paekakriki to Pukerua Bay and return 5 days a week. Have to shake my self awake at Fishermans on the way home. Nice 100km road restricted to 80. Thought the 80 was only until they put the WRB in - Tui No wonder cagers keep hitting the WRB through boredom, a few have even admitted they lost concentration. Bet the cages wonder wtf is going on as I practice counter steering just to stay awake

[Scuba_Steve]

Try riding Paekakriki to Pukerua Bay and return 5 days a week. Have to shake my self awake at Fishermans on the way home. Nice 100km road restricted to 80. Thought the 80 was only until they put the WRB in - Tui No wonder cagers keep hitting the WRB through boredom, a few have even admitted they lost concentration. Bet the cages wonder wtf is going on as I practice counter steering just to stay awake

yep 80km/h gives them longer to check out Kapiti Island this is the prob with slower speeds, yes theoretically they give you more time to react IF your watching the road & therein lies the prob slow speeds bring boredom, loss of focus/concentration, & makes it easier to watch the scenery which in turns makes the slower speeds more dangerous than the faster speeds because of the inattention factor (all relative of course) & why "safe to the conditions" speed would do more for safety then "legal speed"

And in my experience most people can't even do the 80km/h along there anymore they're more often than not down to 60km/h wheres the 10km/h tolerance for them ay???

[Berries]

You're on a motorbike - how CAN you be bored??

Riding a motorbike in a straight line at legal speeds doesn't do much for me. I like corners and acceleration. When I set off for a long ride I hate to see empty roads, as overtaking adds to the adrenaline, which is the main reason I ride. Oh to have a track nearer to Dunedin.