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  #37  
Old 11-12-2013, 04:43 PM
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Re: Off Road 18"s

Thanks Steve,
I have on order a JCG Overland with ORII package, I have already purchased another spare so I can run 2, I have discussed with our local tyre dealer to swap out the tires to the Cooper AT3, good to see some info especially on the % well done


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Originally Posted by Barboots View Post
I've been making up a list of some of the "harder" 18" tyres for off road use. I realised it might be of use to others and started to add in a few of the tyres which probably were not my bag, but went some way towards making it a "complete" list. I started to lose interest and appreciate it isn't complete, however as far as the tougher / more agressive tyres are concerned it's bloody close

Note the percentage change figures are circumfrential, not radius (height increase) or diameter. I might add this in tomorrow with some other stuff I've missed / skipped... or not!

265/60R18 Factory 18"s = Baseline
Pirelli Scorpion ATR - Construction Not Specified
BBridgestone D697 - LT Construction

265/65R18 = 3.42% Increase
BF Goodrich AT - LT Construction

285/60R18 = 3.39%
General Grabber AT2 - LT Construction
Bridgestone D697 - LT Construction
Cooper Zeon LTZ

275/65R18 = 5.39% Increase
Falken Wildpeak A/T - LT Construction
General Grabber AT2 - LT Construction
Cooper AT/3 - LT Construction
Cooper ST
Cooper STT - True 3 Ply Construction
Maxxis MT764 Big Horn
Federal Couragia (not on website, found on eBay!)

285/65R18 = 6.77% Increase
Falken Wildpeak A/T - LT Construction

275/70R18 = 8.95% Increase
Mickey Thompson ATZ
Mickey Thompson MTZ
Cooper ST
Cooper STT
Cooper ST Max

Some of the bigger stuff is going to be a problem in the spare wheel well, and may even require wheels with less offset in order to push the tyre away from the upper control arm joint, which seems pretty close on my inspection. Anyway, this is a work on progress... I just thought putting it here might spark things up a bit.

Steve
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  #38  
Old 11-12-2013, 06:10 PM
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Re: Off Road 18"s

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Originally Posted by shellhall5183 View Post
Thanks Steve,
I have on order a JCG Overland with ORII package, I have already purchased another spare so I can run 2, I have discussed with our local tyre dealer to swap out the tires to the Cooper AT3, good to see some info especially on the % well done
Excellent... and I'm gad to be of some assistance shelhall. Given you have a wait for your Grand to arrive, keep watch for new tyres coming online in your preferred size. For example, Cooper Tires Australia said that the ST Max might be available in 275/65R18 early-ish 2014. They caught my attention enough to chase up an ETA... it's a pity I need to sort something out earlier.

Anyway my point is that there may be some interesting releases over the coming months.

Cheers,
Steve
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  #39  
Old 11-12-2013, 06:39 PM
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Re: Off Road 18"s

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Originally Posted by Barboots View Post
Excellent... and I'm gad to be of some assistance shelhall. Given you have a wait for your Grand to arrive, keep watch for new tyres coming online in your preferred size. For example, Cooper Tires Australia said that the ST Max might be available in 275/65R18 early-ish 2014. They caught my attention enough to chase up an ETA... it's a pity I need to sort something out earlier.

Anyway my point is that there may be some interesting releases over the coming months.

Cheers,
Steve
Thanks Steve,
Yeah we need to change them out cause we are planning a trip with the new car, and we have new car and new camper that we will be heading of on a 8 week drive with 30% on dirt roads.

I have also looked online to get them shipped here from the US but tire dealers here are not keen to fit them. the cost of tires here seem so expensive, the Coopers I have been quotes are $450 a tire, x that by 5 and that's a costly excursive as they don't give you anything for the tires they are replacing. which when brand new $100-$200 would be nice as they can resell them anyway?

Cheers
Brenden
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  #40  
Old 11-12-2013, 07:46 PM
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Re: Off Road 18"s

The Cooper prices are a bit hard to swallow Brenden. Have you seen Noon's Falken AT fitment, or the recently posted Hankook AT pictures? At a $375 (I think) and $220 respectively, they offer serious savings over the Coopers. I'm going to fit General Grabber AT2 at $360 a corner, which is a good deal for a 3 physical ply carcass.

Are the Cooper AT3s two or three ply physical construction in 275/65R18?

Cheers,
Steve
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  #41  
Old 11-12-2013, 07:58 PM
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Re: Off Road 18"s

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Originally Posted by Barboots View Post
The Cooper prices are a bit hard to swallow Brenden. Have you seen Noon's Falken AT fitment, or the recently posted Hankook AT pictures? At a $375 (I think) and $220 respectively, they offer serious savings over the Coopers. I'm going to fit General Grabber AT2 at $360 a corner, which is a good deal for a 3 physical ply carcass.

Are the Cooper AT3s two or three ply physical construction in 275/65R18?

Cheers,
Steve
Good questions there Steve,
The main reason is that I have used coopers for many years and have found them awesome quality, I will do some more research as I have till mid Jan to sort this out and I agree the cooper pricing is over charges allot.

I have been caught before changing tire i.e I currently installed the Yokohama Geolanders G12 on my 4wd and I think they are absolute crap, would never recommend these tires to anyone. compared to the coopers I used there is no comparison what so ever. The only reason is the company I had to use was not a cooper dealer. :-(
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  #42  
Old 11-16-2013, 12:34 AM
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Quote:
Originally Posted by adamt View Post
I have just put together a set of 18" rims for my GC to compliment the 20's I usually run, after picking up a set of Laredo rims of ebay I painted them gloss black to match the Jet edition theme. Then after plenty of research I went with some Hercules Terra Trac tyres in 265/60/18 these are made in the US and at $220 each fitted and balanced are a bargain, considering they will sit in the shed probably 8 months of the year. Being the same rolling diameter as the 265/50/20's meant that the spare also fits in its spot with all the storage bins.
Hey adamt.

The Hercules Terra Tracs look great. I was just wondering which tyre dealer you got them from?

Cheers,
Clarkey.

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Old 11-16-2013, 07:48 AM
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Finally got around to getting our 18's (Mopar 82212377) and D697's on the GC today. Very happy with the result. Tyres are standard 18" size 265/60/18. The ride is a little firmer than stock 20's and there is an ever so slight hum that you can only hear with radio muted and if you listen for it.
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Old 11-16-2013, 08:24 AM
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Re: Off Road 18"s



Looking good, especially on those rims. A picture of the face of the tread would complete the package

Cheers,
Steve
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Old 11-16-2013, 11:10 PM
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Quote:
Originally Posted by Barboots View Post
Looking good, especially on those rims. A picture of the face of the tread would complete the package Cheers, Steve
Just went for a spirited run up some twisties. The tyres performed very well for an AT. Had the wife feeling queasy! Next test is in the scrub.
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  #46  
Old 11-17-2013, 04:40 AM
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Re: Off Road 18"s

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Originally Posted by DS84 View Post
Finally got around to getting our 18's (Mopar 82212377) and D697's on the GC today. Very happy with the result. Tyres are standard 18" size (265/60/R18). The ride is a little firmer than stock 20's and there is an ever so slight hum that you can only hear with radio muted and if you listen for it.
I've got the same tyres except with the white lettering on the outside. So what tyre pressure did they tell you to use?
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  #47  
Old 11-17-2013, 04:54 AM
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Re: Off Road 18"s

So guys when you change from 20s to 18s what other changes need to be made does the speedo need re flashing ? Do the new TPMS hook up ok? Looking at changing but not sure all the implications of doing it
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Old 11-17-2013, 06:23 AM
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I've got the same tyres except with the white lettering on the outside. So what tyre pressure did they tell you to use?
We didn't really discuss pressures as they were quite busy when I picked them up. They were inflated to 38 PSI and is where I usually run my AT tyres. I have read that these tyres need to be inflated to 38-40 PSI to keep them nice and quiet. What has your experience been with them Bob?

Quote:
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So guys when you change from 20s to 18s what other changes need to be made does the speedo need re flashing ? Do the new TPMS hook up ok? Looking at changing but not sure all the implications of doing it
No changes to be made as I believe the standard 18" 265/60/18 size is the same diameter as the stock 20's. However if you do change up (or down I guess), apparently you can have the tyre size re-calibrated into the GC. I opted for the OE size, as I didn't really see any great need to go larger.

I still have the original 20's and bought new tyre pressure monitors for the new 18" rims. As soon as the rims went on and I went for the first drive the pressures were showing up, nothing required to be done to get them to work. If you were to swap your existing TPMS's from your 20's into new 18's, they would continue to work as they did in the 20's.
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