Legal or not

[Sambarhunter]

I was just down at Highway Tyres and he told me its Illegal to put 265/75/16" Tyres on a new triton he tells me the most you can gain is 15mm overall diameter is this right ????

[sierra]

Try asking Qball to explain how you can fit way over 15mm larger diameter legally?
[Still waiting?]

viewtopic.php?f=36&t=3874

[trickydevil]

I always thought it was 25mm. As long as you let you insurance company know what your running and they're happy with it and your covered i wouldn't be to woried about a tyre bloke as generally say things to cover their arse.

[al coholic]

It is actually "illegal" as far as the rules go, you can only go up to a 15mm diameter increase over the largest tyre fitted to the model of car you are driving. And the 25mm is in regards to the width of the tyre. But, as is asked on this forum all the time, the tyres will easily fit the triton in standard form with no rubbing at all, so no worries there.

But in reality, there are plenty of things on vehicles that are "illegal" even as simple as sticking youre GPS on the windscreen etc, but people still do it.

You can always get the tyres engineered once they are fitted to make sure youre ute is fully roadworty and insurable. Then you will not have anything to worry about. I have asked my insurance company a couple of times for clarification, the best answer i get is "As long as it is roadworthy as far as RTA regs go, then we will cover it." I dont have my 265/75 engineered as yet, but plan to (famous last words), But for an extra few hundred bucks for an engineers cert, the offroad ability you gain from your truck still makes it very worth while. Cheers Ben

[Tony]

Interesting this! I'm picking my new GLX-R on monday and the first job is the get rid of the stock tyres. Not much around in 245/65/17 so will have to go oversize. Then insurance becomes an issue. Bit hard to get it engineered the day of purchase!

Cheers Tony

[Blue]

Allianz (who underwrite my lease company) consulted the NCOP and advised that 50mm was fine...

[Notso]

Yes, well all this is just another argument to have a single national Government in this country isn't it?

NSW Will probably adopt the NCOP one day, but there is a campaign going on at the moment against adopting it, for other reasons than the tyres.

The NCOP will allow up to 50mm increase in diameter, but NSW hasn't adopted it yet.

[Tony]

Allianz (who underwrite my lease company) consulted the NCOP and advised that 50mm was fine...

50mm would be great! I'll make some calls on monday before I pick it up.

[boostedbmw]

I put a pajero tyre placard on mine to GET AROUND the issue if i was questioned

[chris_s]

According to VicRoads, 15mm is the max diameter allowed above the stock standard fitment.
Many tyres available in this area for 16". When I had my Patrol, I went from 275/65R17 to 265/70R17.
(Check VicRoads website for precise wording on modifications)
These were just legal (14mm larger) and put my speedo out by about 10%.
Last year, the special ops group staged a road block near Mansfield (Vic) and put a number of 4wds off the road for illegal mods. They did the same out from marysville in 2008.
Becareful out there.

[sierra]

According to VicRoads, 15mm is the max diameter allowed above the stock standard fitment.
Many tyres available in this area for 16". When I had my Patrol, I went from 275/65R17 to 265/70R17.
(Check VicRoads website for precise wording on modifications)
These were just legal (14mm larger) and put my speedo out by about 10%.
Last year, the special ops group staged a road block near Mansfield (Vic) and put a number of 4wds off the road for illegal mods. They did the same out from marysville in 2008.
Becareful out there.

790mm dia to 804mm dia which is 14mm as you said but it's a difference of 1.8% for the speedo not 10% and it would have been reading over anyway like they all do, so it would have been a bit more accurate but still reading over.

It would need the special ops because they would have all had to do an intensive course to know what they were doing.
That's why nobody gets booked normally.

[sierra]

Good find Tex, for Tassie and WA!
50mm bigger dia for 4x4 and commercial.


It gets better.
I'm in WA and want to move to Tassie!

[al coholic]

All the more reason for all states and territories adopt the National Code of Practice guidlines. How can it vary so much across the country????

[sierra]

Sierra I got all excited when I saw SA is the same as Tassie. When I phoned about it I found SA has changed to the + 15mm MAX

Bad luck!
Maybe the engineer approval can be extended and be a group thing so you change the tyre sticker compliance for the new approved size range?

Wont be long before it's all 15mm.

[apoll]

Not sure if it's been mentioned anywhere yet.

I just went down to a local tyre place (Penrith NSW) and he told me rules have changed in June 2009. It is now ok for up to 50mm increase for 4wds but still 15mm for passenger vehicles. He even showed me in his regulation book.

I asked him about the NSW RTA VSI09 and he said that is old and RTA haven't updated their website yet.

This would mean in NSW 265/70/16s are now ok but 265/75/16 are just a couple of mm over.

[al coholic]

Not sure if it's been mentioned anywhere yet.

I just went down to a local tyre place (Penrith NSW) and he told me rules have changed in June 2009. It is now ok for up to 50mm increase for 4wds but still 15mm for passenger vehicles. He even showed me in his regulation book.

I asked him about the NSW RTA VSI09 and he said that is old and RTA haven't updated their website yet.

This would mean in NSW 265/70/16s are now ok but 265/75/16 are just a couple of mm over.

Interesting.............will be following up on that one for sure............

[apoll]

Interesting.............will be following up on that one for sure............

I'm going to contact the RTA to find confirm this.

The tyre place was a large reputable one so you'd think they would be aware of the correct regulations.

[The Finch]

Hi apoll,
Did you have any luck with this?

I checked with local tyre company's in my area but very vague.
They all tell me 15mm maximum.

The RTA website still says 15mm also.

[apoll]

Hi apoll,
Did you have any luck with this?

I checked with local tyre company's in my area but very vague.
They all tell me 15mm maximum.

The RTA website still says 15mm also.

Yeah I've had the same luck finding out else where. I'm going to go back to them and get the name of their regulations book. FYI the tire place was Jaxs. I suppose I can name them.

[The Finch]

Jax is the one tyre place i didn't try here locally.
i might go see them.
I'll ask if they know the current RTA VS109 specs.

[The Finch]

Now i am really confused.

My local tyre dealer, Bridgestone specialist now informs me the NSW regulations on ly allow a maximum of 10mm over the standard size specified.

[ag9111]

Why are you taking the word of the tyre place. your online, get on to the RTA website and see for yourself

[waveriders]

15mm is the legal increase in NSW. Currently the 4WD Association and After Market Manufacturers Association are talking with the RTA re the new legislation. Apparently it is awaiting ministerial sign off and they cannot release the details until it has been signed. I would expect to see something released fairly soon.

[apoll]

Just put 265/75 16s on mine and currently working through the process of getting them engineered.

When I'm done I'll put up what I did, contacts and costs for those interested in the Sydney area.

Andrew.

[apoll]

Ok I think I'm finally legal. This is what I did.

1. Buy tires.

2. Get speedo checked and if needed re-calibrated. The engineer will require a report from this. Mine was about 2% over so it needed re-calibrating. I had it done at General Auto Instruments at Lidcombe (02 9649 1442). This cost $300 and took about 3 hours.

3. Get the engineers certificate. I used Consulmotive Engineering at Mortdale (02 9153 0011). Guy's name is John and he is really helpful. This cost $150 and took about 1 hour.

4. Get a blue slip from mechanic who does them. I used BDC Automotive at Penrith (02 4732 4679). Once again the guy there was really helpful. Make sure they fill in both the blue slip and the RTA notification of change form (orange form). This cost $36 and took about 1 hour.

5. Go to the RTA with your current rego papers, all copies of the the engineers certificate, blue slip and change form. They will update your car's records indicating the modification.

That's it.

So all up it cost about $480 which isn't too bad given it's something you only have to do once for the life of the car. If your speedo is correct you can save about $230 without the re-cal.

Hope this helps for those who want to be more legal.

Andrew.