Wheel size on new Landrover Discovery

Submitted: Saturday, Jun 18, 2016 at 09:07
ThreadID: 132788 Views:2342 Replies:7 FollowUps:18
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Does anyone know if you can change the size of the 19" rims to a smaller size to get higher profile tyres?
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Reply By: toffytrailertrash - Saturday, Jun 18, 2016 at 09:10

Saturday, Jun 18, 2016 at 09:10
From memory when we had a D4 because of the Bendix Brake Caliper the only way to down size was to order special rims through one of the guys on the AULRO forum in Perth. He had had them made just for this reason, otherwise, no. I cannot remember his name or contact details but he ran a 4x4 training Company over there.

Cheers

Merv
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Follow Up By: 4wdbucko - Saturday, Jun 18, 2016 at 09:34

Saturday, Jun 18, 2016 at 09:34
Thank you so much for your quick reply. I will try and give that a go. Cheers
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Follow Up By: 4wdbucko - Sunday, Jun 19, 2016 at 10:39

Sunday, Jun 19, 2016 at 10:39
Well!!!!! Went out and bought a TDV6 yesterday + options. Very happy. What a car to drive. Did a fair bit of homework on the tyres and several forums. I dont see any problem with where we will be going. Done all the HARD stuff in the Prado that I now have to sell. Now looking for the best websites to put it on. It has ALL the gear. Any suggestions?????
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Follow Up By: Bob Y. - Qld - Monday, Jun 20, 2016 at 13:42

Monday, Jun 20, 2016 at 13:42
ExplorOz or carsales.com.au Bucko.


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Reply By: AlanTH - Saturday, Jun 18, 2016 at 09:12

Saturday, Jun 18, 2016 at 09:12
Hi bucko. Much better to ask this question on the aulro.com site as those on here mostly know only things about Tojos or Nisscans. :-))
AlanH.
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Follow Up By: 4wdbucko - Saturday, Jun 18, 2016 at 09:36

Saturday, Jun 18, 2016 at 09:36
Thanks, will try that website.
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Reply By: Member - nick b - Saturday, Jun 18, 2016 at 09:39

Saturday, Jun 18, 2016 at 09:39
legally speaking ....how would this go &15 mm max overall height increase
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Cheers Nick b
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Follow Up By: AlbyNSW - Saturday, Jun 18, 2016 at 09:47

Saturday, Jun 18, 2016 at 09:47
There is no suggestion of changing the rolling diameter, just fitting a smaller diameter rim so that a higher wall tyre can be fitted to equate the same or similar overall size

Does not effect legalities, it is just a question of whether you can get a rim to fit
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Follow Up By: Member - nick b - Saturday, Jun 18, 2016 at 10:22

Saturday, Jun 18, 2016 at 10:22
Just posing the question of the legality if you change the rims from standard size I know some states are tougher than others on stuff like that.
You will probably save yourself some money by doing that ,it seems that the tyre prices jump every inch you get bigger .
Cheers good luck with mods
Cheers Nick b
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Follow Up By: AlanTH - Saturday, Jun 18, 2016 at 11:02

Saturday, Jun 18, 2016 at 11:02
Good question that Nick, wouldn't have crossed my mind about legality of it. When you see some of the ludicrous lifts some have on their vehicles you have to wonder what the law intends if they're legal. They look quite unsafe to me.
But certainly greater tyre depth is worth while when off-roading as I saw a vehicle at the bottom of Calcup Hill WA once with those very thin hwy tyres on and it didn't look as if he could make the top as they're impossible to deflate before the rim is on the ground.
AlanH.
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Follow Up By: Michael H9 - Saturday, Jun 18, 2016 at 13:24

Saturday, Jun 18, 2016 at 13:24
The tyre placard on the car usually has the tyres sizes for different size rims. The outside diameter remains essentially the same for every size rim because the tyres get taller or shorter depending on which way you are going. You can go up one size tyre and still stay legal in all states.
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Follow Up By: Member - nick b - Saturday, Jun 18, 2016 at 15:01

Saturday, Jun 18, 2016 at 15:01
Michael : don't know about other states but in South Australia rule book says 15 mm is maximum size increase . Of course this is always up to interpretation and the law courts ...lol ,I find some Type places now won't put tyres on the rims that aren't of legal size for the vehicle :-(
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Follow Up By: Michael H9 - Saturday, Jun 18, 2016 at 18:10

Saturday, Jun 18, 2016 at 18:10
If you do the calculations then you will find that going up by 1 size will increase your diameter by just under 15mm for tyres in the 28" to 30" range.
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Reply By: GarryR - Saturday, Jun 18, 2016 at 11:16

Saturday, Jun 18, 2016 at 11:16
hi there 4wdbucko. I think you may have a small problem on your hands. Check to see what the placard inside your door states. If your vechile came out standard, or your fitted 19" wheels from new, you cannot legally go back to !8". I have come across this problem with my son in laws 200 series that came out std with 19". Should the vechile be involved in an accident (your fault or not) the insurance company can void the claim. (as stated to me from the insurance company). We stated that the same vechile comes with both 18" and !9". But was placarded for 19" VicRoads states that I can go up 2" from standard but not backwards. Assuming you are in Victoria. Hence we got stuck with the 19" and the offroad tyres are considerably more expensive, let alone the slection that is or was available at the time. This was only 12months ago.
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Follow Up By: garrycol - Saturday, Jun 18, 2016 at 11:19

Saturday, Jun 18, 2016 at 11:19
You make a good point about about what is listed on the tyres placard.

As at one stage D4s may have had 18" wheels as standard on some models, 18" will most likely be listed as an alternative on the placard.

Garry
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Follow Up By: toffytrailertrash - Saturday, Jun 18, 2016 at 11:32

Saturday, Jun 18, 2016 at 11:32
Contact www.greenovalexperience.com.au He is the person who had the 18" rims made for the Disco 4's..

Give him a call or check out his web for all the details.

Cheers

Merv
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Follow Up By: Frank P (NSW) - Saturday, Jun 18, 2016 at 11:52

Saturday, Jun 18, 2016 at 11:52
Leave off the ".au". It's just dot com.
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Follow Up By: Member - Boobook - Saturday, Jun 18, 2016 at 12:55

Saturday, Jun 18, 2016 at 12:55
GarryR.

Are you sure your son's 200 came with 19" wheels? To my knowledge the 200 has never been supplied with 19" wheels in Australia and it's not even available as a factory option.

For a long time you could only get it in 17" then some time ago the Sahara came with 18" but you could put the 17" alloys on it like all the other models.

Now the VX and Sahara come with 18", GXL and GX come with 17" wheels. The VX and Sahara have a slightly bigger front disc so there are some issues putting on a 17" rim from a fitting perspective. Steel only from memory.

I think you will find the law deals with the overall diameter, not the rim.

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Follow Up By: GarryR - Saturday, Jun 18, 2016 at 13:53

Saturday, Jun 18, 2016 at 13:53
gidday boobook, the 200 series altitude came out with 17" and 18'' your right. that is my mistake. As the vechile came off the showroom floor with 18", he still cannot go back one size, as the placard was states the larger.
If 4wdbucko's vechile came out std as 19" he still has the same problem of going back one size. The only other option is to write off to the manufacturer as see if they will sent you out a new placard for both sizes and written confirmation of such. This should satisfy both the insurance company and the road authority with a bit of luck. Thanks for picking me up on my mistake
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Follow Up By: Member - Boobook - Saturday, Jun 18, 2016 at 16:24

Saturday, Jun 18, 2016 at 16:24
Oh, Ok that makes sense.

Yeah I thought 19" was too big. It's hard enough finding 17" let alone 18" tyres in the bush and 19 - forget it.

I may be wrong but I thought the law in Victoria says something like "on the placard or in the manual" My words. Which makes it ok. When I was looking for aftermarket wheels for my 200 a few years ago I actually contacted Vicroads. The Issue I had was the load rating of the wheels. It was very confusing but in the end they said if it is in the manual then it is ok. The Toyota 17" genuine steel rims were the only ones at the time.

I am pretty sure that he will find the manual lists 17" tyre sizes if he still wants to pursue it.

Check on LCOOL. It has been discussed a lot.



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Reply By: Member - Rich - Saturday, Jun 18, 2016 at 11:50

Saturday, Jun 18, 2016 at 11:50
The 18” rims are expensive(about $570 a rim) but does open a wider range of tyres. Guys who have them, I don’t, reckon their good.



The D4 placard does mention 18” and 20” tyres.

There are a number of 19” AT tyres and I believe MAXXIS have just come out with a 19” AT in LT construction. But over all a limited field of tyres.

Richard
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Reply By: Michael H9 - Saturday, Jun 18, 2016 at 13:30

Saturday, Jun 18, 2016 at 13:30
A friend has a D4 with 19" rims and hasn't had a problem getting decent off road tyres for it. He has taken the car into every conceivable terrain situation without any issues (he's a 4wd trainer in our club). After seeing his car in action, I'd question the need to bother and I was sceptical to begin with.
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Reply By: Rangiephil - Saturday, Jun 18, 2016 at 14:45

Saturday, Jun 18, 2016 at 14:45
However I know a bloke with a D4 who destroyed 11 yes 11 19 inch tyres on a trip between Sydney and Darwin. This is not second hand. I was there as it was being discussed at a club meeting .
They were a well known brand.
The tyres were bruised inside from pinching between the rim and the ground.
The tyre company jacked up after 11, and AFAIK the bloke then moved down to the 18 inch rims.
While you could question the blokes driving style and inflation it shows what can happen.
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Follow Up By: Echucan Bob - Sunday, Jun 19, 2016 at 15:05

Sunday, Jun 19, 2016 at 15:05
Sydney to Darwin? Did he go the long way by heading off in a South Easterly direction?
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Follow Up By: Graeme - Monday, Jun 20, 2016 at 04:33

Monday, Jun 20, 2016 at 04:33
I have taken my D4 with 19" tyres to Chambers Pillar, Mereenie Loop, and to the Bungles, besides a lot of poor roads in WA. I covered 16000km and did not have one tyre problem. Why? I simply drove to conditions, I was not in a rally, I did not have to be at a point by a certain time.
I have now covered 126000km over many parts of Australia and the only flat was on nearly worn OEM Goodyears on a freeway and was not a real problem.
Correct pressures also play a critical part as well.
Cheers Graeme
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