Hi there,

So I have had GG before on a Jeep grand Cherokee MY 07. Not sure now exactly which a.t tyres they were, but defo GG.

Hopefully getting L322 soon, ideally late MY 2012. It will almost certainly have 20" wheels.

As for tyres, which size GG at3?

Its important that they are 'legally' OK.

Comfort is key, so happy with a decent tyre wall.

Also might consider BF Goodrich at, but open to advice on here.

Your advice is appreciated,

Steve

Loads of tyre threads on here Steve so plenty of opinions. I have had GG ATs on both my Full Fats and on a couple of XC90s before that. If you are likely to be doing a bit of off roading Now and again, but want a good solid tyre that lasts ages then they are a great option. I’m running 255/55/20.

I’ve had GG AT3’s 255/55/20 on for just over 2 years, no problems at all.

I found the AT2's to have very weak sidewalls, Pirelli AT/R's were much more resilient and a great all-round tyre. Unfortunately they're no longer available in the size needed but the OEM tyres do perform very well offroad, despite being road-biased.
OP - for your stated use, I'd say that you don't need AT tyres at all - just let the vehicle do it's stuff and sort it out for you, unless it's 'just for looks'.

Thanks guys….

Yeah probably right about the need for them. No serious off roading per se.

But when I finally get the 322 unless it has some very decent tyres all round, I will replace. Just think that new premium tyres are a must have when I start using a new to me car. FFRR or otherwise.

So plenty of choice and will take advice when it’s offered.

Just that as stated I have had GG a.t in the past. If there are some viable alternatives I will gladly spend hours online checking them out 😊
Steve

I have 255 55 20 all round and very happy. Got them from Paddocks Spares at a great price.
Also have one has a spare in the wheel well at 20psi so it sits snugly.
They ride great 👍

Noted. So a 55 profile over a 50 provides a tad more comfort would you say, even if minimal?

Am I right with this in general terms?

S

More sidewall flex is a definite plus for offroad use, the opposite is true for 'performance'

Ok cool.

So out of 255/55/20 and say 275/45/20 (which I am informed elsewhere on the forums would be very similar) what is the smarter choice?

S

If your considering 255/55’s I’d rather go 285/50’s (and did 3 years ago) they are on all through the winter / shooting season and cope admirably with deep mud and snow. This last season was 44 shooting / days off road. 2021 L405 Vogue SE 4.4 V8 DIESEL ~ #17

Well, 255/55 R20 are the standard size for L405, make of that what you will. I briefly ran 255/60R18 AT2's on my L319 across North Africa. They were a standard size, as previously mentioned the sidewalls were prone to damage. Granted, in UK, airing down to improve traction isn't something you'd normally do, unlike most of the rest of the world - I don't know if it's due to terrain or custom & practice but it is something that's routinely done elsewhere. After that, I ran 255/50R19 AT/R's on the same bits of North Africa but a year later with better traction and no sidewall concerns. A few years later on a L322 I ran 255/55 R20 standard Pirelli's - road mpg was about 25-30% better than the AT2's and offroad performance was on a par with the AT/R's, granted, a different vehicle, maybe I was lucky, maybe it was the resilience of the Pirelli's but no sidewall damage across 1500 miles in North Africa and 2000 road miles getting there & back. Sure, there was a couple of repairable punctures, that's to be expected and prepared for, and (hopefully) the AT3's are an improvement on the AT2's, personally I'd be spending money on tyres that I know and trust to withstand 'all terrains' I'm likely to experience.

EOD Steve wrote:

Ok cool.

So out of 255/55/20 and say 275/45/20 (which I am informed elsewhere on the forums would be very similar) what is the smarter choice?

S

So if I have the OEM L322 20 inch alloys the 275/45/20 AT3’s or 285/50/20 AT3’s should both fit

Are there any considerations to take into account when choosing - had the 255/50/20 before on the L322 for shooting and fair bit of on road driving

Both will fit, the 285’s will rub slightly on full Lock on a 322. The 275’s won’t rub, I have had both and on a L322, personally I would go 275/45/20, they are the widest you can go, retains the same rolling radius as OEM, so you don’t dull your acceleration by slightly lifting the gearing of the car.

If it was an L405, then I’d go 285/50/20, I’ve done both and know the results and consequences - on My 17th RR so guess I have learned by my mistakes 😊👍🏻

PS these are for AT tyres used as the vehicle should be - I have a second set of wheels / tyres for the summer with 275/40/22, also had the 285/40/22, version - the 285’s again lift the gearing slightly and do dull the acceleration slightly, but give more rim protection, softer ride and look better.

There are piccies on here around 10/15 years ago with a 322 with 285 Cooper LTZ’s on - and a thread as well re the tyres - gentleman from Australia if my memory serves me right 🙈😂 2021 L405 Vogue SE 4.4 V8 DIESEL ~ #17

Hi there, I have recently fitted two P275 65 18 P275/65R18 114H MICHELIN PILOT LTX M+S TYRES on the front of my 2006 rr 3.0 diesel vogue, but left the vanqish P275/65R18 A/T's on the rear. Some people say that new tyres should only be put on the rear if adding in pairs, but I thought the tyres would 'even' themsleves up because there is less 'drag' from the Michelin's despite them being new, the rear tyres are very chunky with 7 mills of tread on each, any advice would be greatly appreciated.