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I have had the GG AT3 255/55 R19 tyres for almost a year now. Slightly greater width gives about a 10mm lift at the same aspect ratio and gives great rim protection. Love the tyres in sand and mud, no punctures on the rough stuff and they go great on the road too. Recommend the slightly larger width but can’t speak for the road rules in your location regarding the extra diameter.
 

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I scrubbed off a set of Contis 235/60 R18 in 18,000kms (see my story under Moding Discovery Sports?). Fitted GG AT3s 235/60 R18 and love them. Not noisy as I would have expected, and good traction.
What is unclear is what pressure to air down for beach driving. Jax maintain normal city driving should be at 40psi - do I follow the normal air down guidelines?
Depends on the beach driving really. I tend not to go too low early on - I go to 24-26 psi as usually the beach access track might be really dry but then i'm heading a long way up the foreshore where it's firm and damp. Then you can drop 2 psi at a time if you find a tricky beach exit or dry inland track. I would think you could go down to 18psi for a particular "obstacle" without any issue but I've never had to go that low and I wouldn't want to drive any extended distances that low. The trick is to drop the pressure before you get completely bogged/beached.
 

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I have the same question as well. Will the 255's R19 be okay without a need for a lift?
I have 255/55 R19's - you won't need a lift. It is possible to get the tiniest amount of rub on full lock in reverse, though, just on the wheel arch liner. Doesn't ever persist or cause any damage though.
 

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Hi thank you for your info. I'm just unsure when you say full lock. Do you mean AWD in reverse? I just don't see how it can rub going backwards if it doesn't going forward. Thanks in advance.
Sorry for the slow reply. By "full-lock" I mean turning the steering wheel fully to the left. It only happens in reverse when under a bit of load (i.e., reversing up a slight ramp or reversing abruptly).

My thoughts are specifically that when reversing at full left lock the the wheel assembly is forced backward towards the wheel arch liner creating a contact point with the rear inside corner of the front left tyre. There is no contact moving forwards or in any other position including on the front right tyre when reversing with full right lock. I assume this is either a result of the different axle lengths or some slight discrepancy in the fit of the wheel arch liners. Either way, the contact is very light and has not left any rub marks in the liner after 12 months of occasional contact.

To be honest I only really mentioned it because it probably serves as a guide for how wide you can take a 30" diameter tyre (255 max probably) without having to space, which i'm not sure would be the answer and that I don't think a lift would fix the tyre width issue. Of course there could also be some variations depending on which country your car was purchased in, I'm not sure.
 

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Hi, I fitted 255 55 19 Pirelli 's to my Disco Sport and have a bit of sway at about 110 km/h. Feels like cross winds. Was wondering if you had similar issues.
In response to this related private message (apparently I can't send PM's yet?):


Do you mean the car sways back and forth (left to right) or occasionally lurches one way and you have to correct?

I don't have any issues at any speeds with these tyres, have you checked your tyre pressures? make sure they are even across the axles.

Also, I have a big roof tray on mine and, to be honest, don't really notice cross wind buffeting too much - it's still a fairly low profile SUV.

If the car is swaying back and forth it isn't cross wind. If it lurches occasionally when you pass a truck, then it could be. You should be able to hear the wind noise, though (if you turn the stereo off) and you should feel the car roll a little to the sides too.

Definitely get the tracking done at a garage somewhere. If it's way off it could be causing an issue.
 

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Can you post a couple of pictures of your set up. I am planning to purchase tires with the same size but different tires. I I appreciate it and thank you
Couple images for you, these are before a few other mods including lifting. These tyres go great on the sand!

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I have slightly larger tires than you @outbackgeo and they fit with minimal rubbing at full lock, no other issues whatsoever.

I recommend 265/60/R18 Cooper Discoverer AT3s for a great balance between sidewall height and tire width.
That's awesome, I honestly would have guessed that 265's would be too wide and would rub at full lock as mine only just clear. You definitely get more tyre options on 18's, i nearly swapped for 17's but it's a pain to find any guaranteed to clear the brakes - in the end just swapping the rubber has worked out well for my usage - mostly really beaches & sand, with some roots, mud, and gravel.
 

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[QUOTE = "outbackgeo, post: 82021, membre: 13514"]
Couple d'images pour vous, ce sont avant quelques autres mods, y compris le levage. Ces pneus vont très bien sur le sable!

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Salut, je suis nouveau sur le forum.
En regardant les photos, j'ai vu que vous aviez une galerie de toit Front Runner. Avez-vous le toit panoramique? Parce que sur le site Web de Front Runner, il est indiqué que la galerie de toit ne convient pas aux modèles sans toit panoramique. Et je n'ai pas de toit panoramique.
Pouvez-vous me donner les références que vous avez? Merci d'avance, Philippe (Belgique)

Hi, I'm new to the forum.
Looking at the photos, I saw you have a Front Runner roof rack. Do you have the panoramic roof? Because on the Front Runner website it is stated that the roof rack is not suitable for models without panoramic roof. And I don't have a panoramic roof.
Could you give me the references you have? Thanks in advance, Philippe (Belgium)
I have the panoramic roof. I'm not sure if there is an option for you. I would find a roof rack thread on here and ask in there (y)
 

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Hi, sorry to drag up such an old post but I've just come across this forum. Excuse my ignorance but I'm hoping to get the GG AT3 255/55 R19 tyres, however have the factory 19 inch rims which I believe have 235/55 rubber on them. Will these tyres fit my factory rims?
yes mate, that's what I have. Ask the fitters to check that the fronts don't rub at full lock, one of mine touches slightly at full lock in reverse. No issue, though.
 
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