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Off Road 18"s

122K views 663 replies 74 participants last post by  SNUKE 
#1 · (Edited)
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! :D

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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#603 ·
Hi all. Was reading thru some of the posts here and wanted to ask this. First, I have a 14 Loredo E with 265/60R18 Mich's, not the OE but don't recall at the moment. Either way they are similar to the OE's which were horrible in snow, even light. I'm thinking of buying some AT's, Goodyear, Firestone or Bridgestone, but also thinking of getting new wheels from TireRack. I've read some concerns about the TPS and if they work or don't work on none OE equipment. Is that the case if I purchased TPS when I get the wheels and tires, or are you talking about swapping out the OE TPS and installing it in aftermarket? Also, is it better to size down to a 17" for snows, or OE size. Thanks
 
#604 ·
You are at the Export Grand Cherokee site. Our JGC's will not take 17" wheels because of the heavy duty disc brakes. It might be OK on US JGC's.
 
#613 · (Edited)
Off Road 18"s

I'm getting new tyres tomorrow so will have 4x265 60 18 cooper at3 to get rid of.

2x have done about 20,000 and 2x have done 70,000k. Good for spares or a trailer.

Open to offers say, $300 the lot. Happy to sell in pairs if preferred.


Sent from my iPhone using JeepGarage
 
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#617 ·
Love my 275/65-18 Dynapro MT's, they are a great durable tyre that is still good in the wet after at least 30k kms (I also have 2 sets of tyres that i swap between). They have taken a beating and still work great. The only issue with them is they get pretty noisy.

My road tyres are 275/55-20 Yokohama G012 AT's. They are significantly quiter, but i had a blow out in the first week giving them a test run on a relatively easy trail (great warranty though, includes offroad damage).
 
#618 ·
Cheers for the feedback guys. I'm debating which way to go. Probably not the first person to consider this.

Option A.

Stick with a single set of tyres, all terrains (current Dynapro ATM RF10, LT275/65R18).

Option B.

Ditch the all terrains, import a set of Highway Tyres (performance SUV) from USA for light weight/handling/quiet in 275/65R18 and get the mud tyres (Dynapro or Maxxis 764) for off road.
 
#621 ·
Probably depends how much mud driving your are doing, and how well the ATMs are coping with it? If you need more grip than they are delivering then get some muddies as a 2nd set.

I haven't done as much mud driving as I was expecting, most of my trips have been to the beach, and when I've gone bush it has been dry, so thinking of going to something less aggressive when the coopers are done.
 
#627 ·
Moreton has been really soft recently, but the rain over the past week might firm it up a little.

Almost sounds like you should keep the dynapros you have and get some good road tyres on a set of 20s as your around town set.

I don't do much driving week to week, work from home and do school pickups. It's really just on the highway the coopers are annoying me, but then when I get where I'm going they do well.
 
#636 ·
Moreton has been really soft recently, but the rain over the past week might firm it up a little.
Bulk carnage coming off the micat, first car (a Wrangler, doh) stuck.

Didn't appear many punters running anywhere near the amount of contact patch I had, even the tour guide looked like he was mid 20's psi.
 
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#634 ·
I have run my Dynapro MT's at 15PSI offroad many times and have had no issues. I blew out a sidewall of my Yokohama G012's (not LT) at 25 psi on a gravel road in the first week. I now dont lower them below 30 psi.

I also have no hesitation driving the MT's on sand. They have been all over Fraser and a number of trips to Stockton.
 
#635 ·
That's very disappointing about the Geolanders. I would have thought better of them off-road. I blew out an OEM Kumho KL21's on a relatively smooth gravel road after only 10,000km. My wife has Geolanders on her Subie VX. Haven't tried them off-road but they sure squeal a lot on the bitumen. My reservation of MT's on sand has nothing to do with strength it's just that a smooth tread has better traction than an open tread. I remember the days of dune buggies where guys would deliberately grind off the tread. LT's of course have much stronger side-walls which is good and bad. Good that they are strong, bad that they heat up particularly at low pressures. It just a matter of knowing your gear and driving accordingly but one can't get up much speed on sand anyway.
 
#643 ·
Nice pic! Speaking of floating, at Robe on SA's Limestone Coast people drive on the beach in anything. I tried it in a Commodore. No probs and I didn't even air down. See the pics. I guess it's because of the limestone sand but it's weird because limestone is way softer that the silica of east coast sand.
 

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#648 ·
Yes mate, they are the common 18"s. I'll grab the set of 4 tomorrow... let me know when it suits you to collect from Maylands. If that's not convenient, maybe I can assist getting them closer.

Cheers,
Steve
 
#650 ·
Thinking of getting the Pirelli All Terrain Plus as a set of 4 would cost me $740 fitted (my company deals with Pirelli Aus).
I’ve read all post on here and the 20” thread, there’s references to the ATRs but not the AT Plus, anyone have any experience with them?
 
#651 ·
Hi Snuke,
FWIW, I was looking at Pirelli road tyres but my tyrepower guy advised they didn't have the life of others. Hence my decision to put the SRX's on. Not sure about the A/T's though.
But at that price you'd need to look hard at it being a good deal.
Trev
 
#652 ·
The Pirelli All Season will not have anything like the life of the SXR, or the OR Michelin’s they’re replacing. It was part of the reason I was skipping on them.
Although that was before I realised I could get them directly from Pirelli. All Seasons would cost me $696 fitted, best price I got on SRX was $1,380. Half the life on the Pirelli would be fine at half the cost and having fresher tyres.
I’ll see how we go with AT tyres and revisit it if needed.
At this stage anything will be better than 6.5 year/110,000km old OEs that are still on it.
 
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#654 ·
Just got 75,000km out of a set of Bridgestone A/T 697 265/60R18 LT's. It's true... but not the full story. I got only 10,000km out of the OEM Kumhos after doing some off-roading. We bought a Kimberley Kamper which I had fitted with Jeep wheels and a track to match the Jeep. I needed four new Jeep wheels, two running wheel for the trailer, the trailer spare and the car spare. I got all the wheels fitted with the 697's. So the rig then had six running wheels and two spares all identical. I wanted LT tyres. They are tougher for off-roading. The sidewalls are tougher and don't bulge out as much so less likely to be damaged by rocks. Because the sidewalls don't bulge, a full size wheel with an LT tyre fits neatly in the spare wheel bay. The main purpose of LT tyres is to be stiff and not squishy so as to avoid swaying of light trucks which usually have a high centre of gravity. This then makes them perfect for caravans and trailers. OK, I didn't need A/T tyres on the trailer but I wanted them to be interchangeable. I rotated all the tyres, spares and trailer tyres as well throughout the rig. So I got 75,000km out of eight tyres. Assuming the spares and the tailer tyres did little to no work, you could say that on a four tyre basis, I actually got 37,500km. Still not bad.

I might have got a little more out of some of the tyres but they were getting old so I replaced the lot. The Jeep got 5 of the same 697's again but to save a bit of money I put three of the cheaper Supercat A/T 265/60R18 TL's on the trailer. They are still interchangeable with the car but I won't be rotating them with the car. The job of rotating eight A/T tyres between car and trailer is more than my aging back can take.
 
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#656 ·
I got the Pirelli Scorpion All Terrain Plus's (265/60 R18) fitted on Friday, thanks to Bridgestone charging very little to fit them, it cost me $623 in the end, a true bargain.
I did notice the extra noise very clearly while driving at 100km/h. I couldn't really tell when the noise became more noticeable, I think about 90 km/h.
I didn't push them through round abouts as they were so new, I got immediate slippage on driving out of Bridgestone due to the all new emulsion still on the surface.


I said to the misses to let me know if she isn't happy with them, if they feel odd, too noisey or any other negative, and we will just sell them immediately and get the All Seasons. Her feedback from driving to and from work today - "I don''t know, I don't care".
Well, there you have, precise feedback, which is pretty much what I expected, take that to the bank, I am sure it's helpful to absolutely no one.

I didn't get an alignment, I don't think its ever had one done, I may get one done just for the hell of it.
 
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#657 ·
I didn't get an alignment, I don't think its ever had one done, I may get one done just for the hell of it.
Watch the corners of the tread blocks for feathering... it's pretty easy to spot particularly with new tyres. If there's none, and the car doesn't pull, shimmy or vibrate I wouldn't bother paying for an alignment. Why pay someone for the opportunity to fuQ your sh!t up.
 
#663 ·
I fitted the 265 x 60 R 18 Pirelli Scorpion All Terrain Plus and was extremely happy with them for the first 20,000kms, then they started becoming noisy and now at 50,000 are terrible at all speeds. They were rotated every 10,000kms and wheels were aligned when tyres originally fitted as well as once since. I would definitely never fit them to a Grand Cherokee again.
Regards John.
 
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