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  #541  
Old 01-16-2016, 08:45 PM
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Re: Off Road 18"s

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Originally Posted by lt4vette View Post
I have BFG all-terrains on my 2014. 265/65/18's. When they were new road noise was not a problem. Since they got to about half worn, the road noise has become very loud, and pitched at annoying frequency and droning up to about 80kph - that speed has been increasing as they wear. What is really strange to me is that I have the same tyre (different size) on my 100 series Landcruiser, also about half worn (and I've had two previous sets for their full life) and they make no discernible noise at all. I've rotated the tyres and run them in the reverse direction with no change. The wear appears even with no scuffing.
Is it something about the Jeep and its NVH quality?
Does any one else have the same issue, with these or other tyres? I really like these tyres for there off-road performance an durability, but will change to D297's or similar next time. Any comments on tyre lies for these?
Thanks,
Russell
The BFG is pretty well the bench mark off-road tyre. While it is classed as an A/T tyre, I suspect there is not much given away for highway performance so I'm not surprised it is noisy. Also as Barboots points out, the GC has a monocoque body rather than a chassis so it's essentially an SUV. It is not intended to be shod with full on off-road tyres like the BFG's. An H/T tyre would be a far better fit for the GC. The GC just happens to comes with exceptional 4x4 mechanicals which encourages us to turn it into something more than an SUV.

Personally, I wanted the BFG's and would have been happy with the noise (I think) but I shied away from them because they were not available in the exact OEM size. I was concerned about rubbing and any insurance implications. I went for the Bridgestone D697 265/69R18LT. You mention D297's but I think it's a typo for D697. They are certainly noisier than the stock Kumhos but that's only to be expected from an A/T tyre. However, I haven't noticed any increase in noise with wear as you are experiencing with the BFG's.

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  #542  
Old 01-16-2016, 09:55 PM
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Re: Off Road 18"s

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Originally Posted by BobT View Post
The BFG is pretty well the bench mark off-road tyre. While it is classed as an A/T tyre, I suspect there is not much given away for highway performance so I'm not surprised it is noisy. Also as Barboots points out, the GC has a monocoque body rather than a chassis so it's essentially an SUV. It is not intended to be shod with full on off-road tyres like the BFG's. An H/T tyre would be a far better fit for the GC. The GC just happens to comes with exceptional 4x4 mechanicals which encourages us to turn it into something more than an SUV.

Personally, I wanted the BFG's and would have been happy with the noise (I think) but I shied away from them because they were not available in the exact OEM size. I was concerned about rubbing and any insurance implications. I went for the Bridgestone D697 265/69R18LT. You mention D297's but I think it's a typo for D697. They are certainly noisier than the stock Kumhos but that's only to be expected from an A/T tyre. However, I haven't noticed any increase in noise with wear as you are experiencing with the BFG's.
yes, I did mean D697. The BFG's, or a variant thereof, now come in our oem size, which I plan on going back to, if I can wear out all six of my BFGs at the same time!
how worn are your 697's at the moment, and are you happy with their performance and puncture resistance?
thanks,
russell
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  #543  
Old 01-18-2016, 05:05 AM
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Re: Off Road 18"s

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Originally Posted by lt4vette View Post
yes, I did mean D697. The BFG's, or a variant thereof, now come in our oem size, which I plan on going back to, if I can wear out all six of my BFGs at the same time!
how worn are your 697's at the moment, and are you happy with their performance and puncture resistance?
thanks,
russell
That's good to know. I checked and yes BFG do indeed have an LT260/60R18 in the new KO2. Looking at comparisons between the legendary KO and the KO2, it would seem the KO2 is an even more awesome tyre. However, there is no mention of noise so one would have to assume the KO2's are at least if not more noisy than the KO's. Perhaps they are just a bit too much for our gentle GC's.

My D697's have done really well, 40k so far with about another 10k left on the worst tyre but I'm about to retire it to the spare. They have done their fair share off-road but nothing really tough yet still no cuts, nicks or punctures whereas after 10k on the Kumhos they looked like they were attacked by a lawn mower. There is no sign of unusual wear patterns. So, subject to price, I would certainly get them again. The D697's are made in Indonesia for Australia so chances are the compound is correspondingly hard for Aussie conditions. In the USA, Bridgestone have a Revo 2 with the same tread pattern but I suspect a softer compound to suit their conditions.

As I've said before, I prefer to get tyres in the OEM size for reasons of rubbing and insurance implication. However another reason is to keep sprung weight low. LT A/T tyres are already considerably heavier than the passenger tyres but when one goes to a wider tread things get worse. One can't expect good and safe handling while bouncing around hugely lumps or rubber.
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  #544  
Old 01-18-2016, 06:03 AM
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Re: Off Road 18"s

Looked at Tire Rack - they the new ones listed as 8.6/10 for road noise, which is just in their top "superior " range. Unfortunately they no longer list the old A/T's for comparison, nor can I find any details on how they measure the noise. However, it's still a good sign!
I hadn't thought about the unsprung weight issue - thanks for that. Btw, mine rub on the soft inner guard lining only on the "entry" suspension setting. And do leave rub marks on the trailing edge of the ARB bar - I suspect only on full bump/ full lock. Nonetheless, I will swap to oem size if I can next time.
Also, I have done 50,000km (six rotated tires), and I'd guess they have at least 20,000 left in them. Which is good - I get over 80,000km on the 100 series, but expected less on the Jeep with the IRS.
Thanks,
Russell
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  #545  
Old 01-18-2016, 04:58 PM
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Re: Off Road 18"s

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Originally Posted by BobT View Post

My D697's have done really well, 40k so far with about another 10k left on the worst tyre but I'm about to retire it to the spare. They have done their fair share off-road but nothing really tough yet still no cuts, nicks or punctures whereas after 10k on the Kumhos they looked like they were attacked by a lawn mower.
Hi Bob. I have D697's on my other car, Tojo ute and 3.5t van. Do a lot of dirt with them. Excellent tyre for wear and never a puncture. But I find them hopeless in wet. Really need to slow down at roundabouts, never accelerate hard. Do you find the same with the 18's?
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  #546  
Old 01-18-2016, 05:32 PM
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Re: Off Road 18"s

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Originally Posted by VDJ79 View Post
Hi Bob. I have D697's on my other car, Tojo ute and 3.5t van. Do a lot of dirt with them. Excellent tyre for wear and never a puncture. But I find them hopeless in wet. Really need to slow down at roundabouts, never accelerate hard. Do you find the same with the 18's?
I had D697's on my old Challenger and also found wet weather grip to be a "challenge". I always put it down to the car being a bit top heavy (and no traction control) rather than the tyre.
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  #547  
Old 01-18-2016, 06:43 PM
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Re: Off Road 18"s

BFG's would definitely be the most dangerous in the wet tyre I have
had in the 30 years that I have owned 4WD's. Never again.......

Cheers, Craig
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  #548  
Old 01-18-2016, 08:42 PM
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Re: Off Road 18"s

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Originally Posted by WK2 Max Steel View Post
BFG's would definitely be the most dangerous in the wet tyre I have
had in the 30 years that I have owned 4WD's. Never again.......

Cheers, Craig
Yes, they are a bit slippery, but they are all I've really had, so I just thought it was a characteristic of LT tyres. Have you had LT tyres you found to be OK?
Thanks,
Russell
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  #549  
Old 01-18-2016, 09:36 PM
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Re: Off Road 18"s

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Originally Posted by lt4vette View Post
Yes, they are a bit slippery, but they are all I've really had, so I just thought it was a characteristic of LT tyres. Have you had LT tyres you found to be OK?
Thanks,
Russell
Hi Russell,
The Cooper AT3's were a great LT tyre. Had two sets of them as well as the previous Cooper AT that was replaced by the AT3.

I am told that Hankook Dynapro ATM's are a good LT tyre. A guy that runs 4WD courses has them on his every day 4WD.

Be aware that LT tyres become slippery in the wet as the tread wears......like most tyres

Cheers, Craig
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  #550  
Old 01-19-2016, 12:06 AM
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Re: Off Road 18"s

I've got Cooper AT3's in the stock 265/60 x 18 size, but they are not an LT tyre, they are only a P rated tyre.
To get an LT rated AT3 you'll need to fit 275/65 x 18.
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  #551  
Old 01-19-2016, 12:24 AM
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Re: Off Road 18"s

That explains why I couldn't find them. My 265/65's rub marginally, and just fit in the spare wheel well. This maybe because the bfg's have very square shoulders. even so I'd be reluctant to go to 275/65's, although I know others here have. Given some of the outback tracks I drive on, I am pretty committed to an LT.
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Old 01-19-2016, 03:10 AM
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Re: Off Road 18"s

I found this review, which also includes noise tests:
TREAD WARS | Australian 4WD Action
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Russell
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