Anyone famous?

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Originally Posted by veebs

I'd say so - we know the lower profile isn't ideal, but from the stories I've red on here and elsewhere, losing 4 tyres is fairly atypical without something else adding to the story.

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Nobody would dream of fitting low profile tyres to their off road trailer or caravan for the obvious reasons and in my personal opinion the low profile tyres/wheels that are fitted to the later model discoveries are on there just for their "Looks" and they DO look rather good and work great around town or the city, However in the rough stuff or in the sand/mud they make Zero sense.
As the majority of the newer disco's will never see anything resembling 4WD country these low profile wheels/tyres won't be an issue But the buyers that do want to go off road should have the opportunity to be able to choose a larger profile setup when they purchase their new 4WD and not have to rely on the aftermarket to fill this role.

I believe they have to, because modern compliance testing forces them to!

Swerve / lane change tests on modern verhicles aren’t grand father claused like the Defender was.. so they need the lower profiles to achieve a pass...

There aren’t many vehicles on higher profile rubber that can pass these tests and it may be a contributor.

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Originally Posted by Tombie

I believe they have to, because modern compliance testing forces them to!

Swerve / lane change tests on modern verhicles aren’t grand father claused like the Defender was.. so they need the lower profiles to achieve a pass...

There aren’t many vehicles on higher profile rubber that can pass these tests and it may be a contributor.

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Wouldn't the D4 be on the same clause as the D3, with 17" wheel options?

Still, could be worse...
Lamborghini Urus 2018 revealed and pricing and spec confirmed - Car News | CarsGuide

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Originally Posted by Tombie

I believe they have to, because modern compliance testing forces them to!

Swerve / lane change tests on modern verhicles aren’t grand father claused like the Defender was.. so they need the lower profiles to achieve a pass...

There aren’t many vehicles on higher profile rubber that can pass these tests and it may be a contributor.

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I haven't seen any new cruisers or hiluxes being sold with low profile rubber.
If Toyota can supply 4WDs with decent rubber why can't Landrover?
I call BS on the compliance argument, Landrover are spruiking the new D5 up for its off road capability and yet they are limiting that abillity by selling cars with **** rubber on them.

Realistically though, is 20MM extra sidewall height between an 18' or 19' tyre going to make THAAAT much difference. The footprint length at different pressures is not dissimilar between the 2 sizes so it probably comes down to the choice of tyres available. There are enough vehicles running around on 19's now to justify the tyre manufacturers coming up with some higher profile sizes in the near future.

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Originally Posted by Milton477

Realistically though, is 20MM extra sidewall height between an 18' or 19' tyre going to make THAAAT much difference. The footprint length at different pressures is not dissimilar between the 2 sizes so it probably comes down to the choice of tyres available. There are enough vehicles running around on 19's now to justify the tyre manufacturers coming up with some higher profile sizes in the near future.

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It isn't the footprint that is in question, it is more about the available "flex" in the sidewall that makes the difference [thumbsupbig]

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Originally Posted by veebs

Wouldn't the D4 be on the same clause as the D3, with 17" wheel options?

Still, could be worse...
Lamborghini Urus 2018 revealed and pricing and spec confirmed - Car News | CarsGuide

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Later D4's with the 3L diesel had bigger brakes and the 17's dont fit.

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Originally Posted by trout1105

I haven't seen any new cruisers or hiluxes being sold with low profile rubber.
If Toyota can supply 4WDs with decent rubber why can't Landrover?
I call BS on the compliance argument, Landrover are spruiking the new D5 up for its off road capability and yet they are limiting that abillity by selling cars with **** rubber on them.

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I belive the new D5 is capable of running larger diameter tyres than the D4 (the SVX comes with bigger radius tyres than anything I was aware of in the D4 range, and Im sure you could squeeze a little extra from the factory)

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Originally Posted by trout1105

I haven't seen any new cruisers or hiluxes being sold with low profile rubber.
If Toyota can supply 4WDs with decent rubber why can't Landrover?
I call BS on the compliance argument, Landrover are spruiking the new D5 up for its off road capability and yet they are limiting that abillity by selling cars with **** rubber on them.

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The new Toyota Hilux 2016 fails moose test - YouTube

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Originally Posted by shanegtr

Later D4's with the 3L diesel had bigger brakes and the 17's dont fit.

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All D4s with the 3L engines can't take the smaller diameter wheels, as you say, due to the brake calipers - but this isn't a result of the compliance testing, which was my point. The compliance for the D4 would surely be the same as the D3, considering the largely 'facelift' difference between the models.

Yep, the moose test has been mentioned on here before. Every single Hilux model including the current version, has failed the moose/elk test, along with a bunch of other notable cars. Look up Jeep Grand Cherokee moose test on AULRO for the threads. Very enlightening, but scary too! Ha ha