BFG underinflating caused delamination of sidewalls?





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  1. #1
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    Default BFG underinflating caused delamination of sidewalls?

    Recently back from Moremi which was wet and sandy, deflated my BFG AT KO2 to 1.7 bar, keeping a check on pressures with a tyre pressure monitor. Tyres were fully inflated before driving on hard dirt/tar.
    I took Hilux to Autowiel who sold me the tyres for wheel alignment etc only to find that the two rear tyre sidewalls had delaminated on the inside.
    They called the rep in who inspected the tyres and showed me a pic he had taken of the tyre pressure sticker on the door frame, said the tyres had been deflated below manufacturers spec and it was not their problem. He did say they were prepared to take the tyres and cut them open to see if there was a manufacturing fault... but I would loose the tyres unless there was a fault. The reps attitude in taking the pic of recommended pressures as evidence convinced me that would be a pointless exercise.
    This is nothing I have ever heard of as far as I know its standard practice to deflate in sandy conditions and have done so on so many occasions all over Africa.
    If that is so BFG and the tyre dealer should warn not to deflate!
    The tyre dealer was well aware of my mainly offroad use so should also not be recommending BFG that being the case.
    Autowiel has always given me good service but this is unacceptable IMO. Two tyres with less than 10k km gone!
    Also one small puncture in the front tyre... Disappointing compared to my old BFGs... not a problem in 100kkm with deflating or punctures.

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    Default Re: BFG underinflating caused delamination of sidewalls?

    Yay, one more person that won't buy BFG again!
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  4. #3
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    Default Re: BFG underinflating caused delamination of sidewalls?

    Weird

    I have nothing short of really abused my KO2s. On very rocky terrain (hard not loose) I have gone as low as 1.3 Bar

    Did fairly long distances on bad dirt roads at 1.7 Bar to dampen the corrugations

    My Patrol 4.2D is heavy - laden in back with 136 litres of fridges FULL. + Towing Offroad trailer with everything including lots of water and batteries....

    No issues....
    Last edited by Dungbeetle; 2020/01/28 at 04:30 PM.
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    Default Re: BFG underinflating caused delamination of sidewalls?

    I do not thing I will be trying BFG any time soon. I would have taken him on on the cutting open offer as I would not use them like that in any case.

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    Default Re: BFG underinflating caused delamination of sidewalls?

    With both of your rear tyres exhibiting the same failure I would investigate vehicle related causes. This is just my opinion.

    Had it been 1 front left and 1 rear right for instance, I would be less inclined to think vehicle. If it were just 1 tyre anywhere on the vehicle I would be more inclined to think tyre problem.

    Its a pity you cant put the fronts on the rear and replicate the load/journey you took to see if they deteriorate also
    Last edited by Estee; 2020/01/28 at 05:00 PM.
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    Default Re: BFG underinflating caused delamination of sidewalls?

    I had severe splitting on Cooper ST MAX, 3 of 4 tyres. Also "under inflated" according to agents
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    Default Re: BFG underinflating caused delamination of sidewalls?

    I had cracking of the inner wall on my third set of BFG AT at about 40k km. All 4 tyres. This was only discovered as we could not plug small air leaks on the shoulder of one of the tyres, and then taking it off the rim to fit a gater on the inside. The first set gave me 120k km, and the second only 80k km, but no cracks.

    The rep was not interested in any compensation after hearing that I had deflated the tyre for sand driving. This set saw about 95% tar road. I was told that when you deflate to less than recommended road pressures, you are on your own, even on off-road tyres. Needless to say, I never owned another set of BFGs


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    Default Re: BFG underinflating caused delamination of sidewalls?

    My Coopers did the same. I was told that I abused the tire, under inflation, overloading, driven flat, pothole blah blah blah. So over them on Good year adventurers now no problems.
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    Default Re: BFG underinflating caused delamination of sidewalls?

    I cannot find any info on any Tyre manufacturer site that you have to adhere to a minimum Tyre pressure. Has anyone seen this info before?
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    Default Re: BFG underinflating caused delamination of sidewalls?

    Quote Originally Posted by BruceHun View Post
    I cannot find any info on any Tyre manufacturer site that you have to adhere to a minimum Tyre pressure. Has anyone seen this info before?
    Took me 3 minutes....

    https://www.bfgoodrich.co.za/auto/he...e/faq-4wd-tips

    At BFGoodrich Tires South Africa, we recommend that you carry a quality tyre pressure gauge and drop your tyre pressures by 0.3 Bar at a time until you reach your optimal footprint on the sand that you're driving in. We advise not to drop your tyre pressures to under 1.4 Bar. By dropping your tyre pressure, you're increasing the tyre's footprint on sand, increasing the area of contact between your vehicle and the road.
    Seems the dealer and rep gave the OP "Thee old rope-a-dope". Projected the problem onto the OP....

    I would have taken them on. I have been using BF's now for 9 years. KO, KM2 muds and now KO2. I have only had 2 tyres (KO2's) with balancing issues and dealer replaced them immediately. I do think BF has a quality control issue. My opinion though.

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    Default Re: BFG underinflating caused delamination of sidewalls?

    well...one rep should not be the end of a good brand. So I would try another route, speak to head office or something.

    Still it sucks and no fun.
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    Default Re: BFG underinflating caused delamination of sidewalls?

    Quote Originally Posted by Quiksilver View Post
    well...one rep should not be the end of a good brand. So I would try another route, speak to head office or something.

    Still it sucks and no fun.
    I agree. The cost of 4 or 5 tyres is a small fortune and one should expect a good number of kliks/years out of them.
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    Default Re: BFG underinflating caused delamination of sidewalls?

    At 1.7 bar I would not leave it there.

    Thats the issue with these 3 ply sidewall tyres, heat build up at low pressure and if the rubber getting close to the end of its life span, older than 5 years or what ever, and using a stiffer rubber also. I lost a set of KM2's with lamination and cracks but they have done several dune trips at 0.8 bar and they were maybe 8 years old already.

    But will never go without my BFG , due to the above properties, which makes them less puncture prone.
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    Default Re: BFG underinflating caused delamination of sidewalls?

    Been there, done that with BFG's. Using General Grabber, only lost one tyre due to stupid driving on my side, on a 5k km trip in Namibia. Much cheaper to replace.

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    Default Re: BFG underinflating caused delamination of sidewalls?

    I had a similar issue with 1 grabber At on my old terg rep replaced it no questions.

    the other one got a side wall damage- was sent away and repaired.

    all from the conti partner- tyres originally bought at TWT

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  18. #16
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    Default Re: BFG underinflating caused delamination of sidewalls?

    Does this have something to do with the sidewall carry capacity strenth? My Dunlop AT3 is rated 112T which has a rated capacity of 1120kg per tyre.
    Does this have something to do with deflating and the wear of the sidewalls when running lower pressure?

    I dont know if Dunlop has a minimum pressure? I have run my Dunlops at liw pressures of 1 bar for many days in a row in the Moremi/Savuti and Namib desert.
    How can a reputable manufacturer have this kind of service with your BFs?
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  19. #17
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    Default Re: BFG underinflating caused delamination of sidewalls?

    Was the problem on fixed axles or independent suspension ....
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  20. #18
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    Default Re: BFG underinflating caused delamination of sidewalls?

    Quote Originally Posted by Dungbeetle View Post
    Was the problem on fixed axles or independent suspension ....
    I would guess the Hilux is live axel rear and IFS front?

    What are you scheming? Torque and axel movement?
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    Default Re: BFG underinflating caused delamination of sidewalls?

    The other problem comes in where you see vehicles being overloaded. Bakkie loaded to brim, roof rack with tents etc. towing trailers. So maybe the Tyre guys have a point.
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  22. #20
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    Default Re: BFG underinflating caused delamination of sidewalls?

    Last year I discovered the FJ we bought second hand with 54Kkm on had cracks inside the tread of 4 tires, KO2ís. They were less than 18 months old.

    I logged a call with Michelin HQ and promptly received feedback, the agent made an appointment, did the measurement and I was refunded the wear on the 4 tires, no questions asked. I walked away feeling satisfied, not knowing how the tires were treated.

    I will advise you do the same.
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