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View Full Version : 255/55 R19 Handkook Dynapro AT-M failures



Colin Pedersen
15th February 2016, 03:30 PM
Lots of tyre threads here but thought I'd share my appalling experience with this tyre. Have a D4 with 19" rims and use the vehicle as a daily driver and offroad to visit bush campsites around NSW and beyond.

I fitted a set of Hankook Dynapro AT-M's a bit over 12 months ago. To date I've experienced 3 sidewall tears travelling to National Park camp sites, towing a trailer. The latest tear was to one of the previously replaced tyres that that had less than 6000km travel.

Agree, the 19" rim is the Achilles heal of the Disco 4 but have never experienced this level of failure in a product marketed as a durable premium tyre for sealed and unsealed use.

I have a TPMS system and onboard compressor and pay particular attention to tyre pressure. I initial ran the type at around 30psi offroad and have upped this to around 36psi. I believe the inherent sidewall bulge of the tyre design makes it an easy target for pinching and tearing.

Definitely not travelling on trails that would be considered extreme....designated fire trails in all failure instances travelling at appropriate speeds....an AT tyre should have no issues travelling these roads.

Yep, would love to buy some GOE 18" rims...but have been spending the hard eared on replacing the tyres I've got!

The Hankook's have warn well...travelled 34,000 on the original two not damaged and would expect to get another 30,000 out of them...but currently my wife is reticent to travel anywhere distant for fear of another failure!! May not be an issues for 16, 17, 18" rims...but in my opinion these tyres are not fit for purpose in a 19" format.

Currently looking to replace with a GG or Cooper LTZ.

Will have some second hand...slightly used Hankooks in the near future!.

Col.

Graeme
15th February 2016, 04:36 PM
I believe the inherent sidewall bulge of the tyre design makes it an easy target for pinching and tearing.My thoughts too immediately they were fitted to my D4!

I like the 19" Duratrac's wide tread offering more sidewall protection but didn't get to try them on my D4.

RHS58
15th February 2016, 07:51 PM
Oh dear.
I was seriously considering Hankooks soon as the Wranglers are wearing and have begun suffering punctures - 3 in 3 weeks:(
Maybe just unlucky?
Cooper stories are either for or against. I'm not convinced to try them.
Duratracs perhaps more MT than AT for my needs.
Awaiting further opinions....

Ron

eddy
15th February 2016, 07:51 PM
Oh gawd!I have just had six 19" rims fitted with the Hankook Dynapros.

GP1200
15th February 2016, 08:17 PM
Sorry to hear you are having a rotton run with the Hankooks, I have completed 32,000 km in the last 12 months, so far we have been down to 12 psi a few times down south in deep sand, a bit of forrest work around the south west, a weekend with GOE in Harvey, towing Jayco Swan and the rest the 120KM a day to work, I have been running on the road at 38, 40 while towing, 18 in the forrest and pretty low in the sand ( I used to get bogged quite often in the sand round here, so I go down pretty low straight up and don't have any issues )

They are wearing very well, are still quiet and hopefully will last another 30km.

Maybe a bad batch? Or just plain bad luck, it happens sometimes.
Touch wood I have been very happy so far ( fingers crossed )

Jack

Bytemrk
15th February 2016, 09:11 PM
Interesting, I've done about 45K on my set, including some pretty rough stuff around lithgow, the high country and on this trip..

http://www.aulro.com/afvb/sa-reports/218345-aliens-great-sa-trip-3.html#post2348828

I did tear the side wall out of one rear left tyre on the way up here:

https://www.aulro.com/afvb/

But to be honest, I think that was at least significantly contributed to by the driver.

I guess the one big difference I have is not been towing..... so the additional weight over the back wheels may be the difference. (Even though I do have long range tank and Kaymar bar which isn't light)

There seem to be quite a few that are happy with the Hankooks including me, but I have been pondering whether I'd try the Duratracs next time.

JamesH
15th February 2016, 09:34 PM
About to try some. Really didn't want to hear this. [emoji30]

LandyAndy
15th February 2016, 09:39 PM
About to try some. Really didn't want to hear this. [emoji30]

You should have bought that set from over the fence.The only reason I didnt is my originals are still 75%
Andrew

cjc_td5
15th February 2016, 10:39 PM
Which tyres is certainly a quandary with 19 inch rims?? My OE Wranglers have done 52,000km and will not do another winter. Prices I have obtained have a $130 saving per tyre for the Dynapros vs Duratracs.

Don't know which way to go?? :(:(:(:(:(:(:(:(:(:(

Celtoid
15th February 2016, 10:42 PM
Interesting, I've done about 45K on my set, including some pretty rough stuff around lithgow, the high country and on this trip..

http://www.aulro.com/afvb/sa-reports/218345-aliens-great-sa-trip-3.html#post2348828

I did tear the side wall out of one rear left tyre on the way up here:

https://scontent-lax3-1.xx.fbcdn.net/hphotos-xaf1/v/t1.0-9/11102703_414106022095741_2467374572812321170_n.jpg ?oh=8f17b06b47c2d3e6d72dfde6ad9b8ec9&oe=5725F17B

But to be honest, I think that was at least significantly contributed to by the driver.

I guess the one big difference I have is not been towing..... so the additional weight over the back wheels may be the difference. (Even though I do have long range tank and Kaymar bar which isn't light)

There seem to be quite a few that are happy with the Hankooks including me, but I have been pondering whether I'd try the Duratracs next time.


What's that in front of the Black Deefer ... a Holden Captiva? :)

Celtoid
15th February 2016, 10:50 PM
Oh dear.
I was seriously considering Hankooks soon as the Wranglers are wearing and have begun suffering punctures - 3 in 3 weeks:(
Maybe just unlucky?
Cooper stories are either for or against. I'm not convinced to try them.
Duratracs perhaps more MT than AT for my needs.
Awaiting further opinions....

Ron


Hey Ron,


Nope, not bad luck.


Wranglers are pretty quiet, pretty grippy wet and dry but are a bit wobbly .... which you won't notice until you buy another tyre. All in all not a bad tyre? .....


Except they are $500 a pop and are as soft as butter once they wear. I went through 3 in a week in my old D4 at about 40,000 Klms wear .... all straight through the tread block. Unbelievable .... stones pushed straight through the tread block on nothing more than Forestry Roads when away camping.


D4 number 2 has had 2 punctures on the road at 27,000ks.


I run a set of 285/60/18s when I go camping now. Touch wood ... not even a mark.

Bytemrk
15th February 2016, 11:15 PM
What's that in front of the Black Deefer ... a Holden Captiva? :)

Lol.. nope, Freelander.

The group was 2 Defenders, a Freelander, a D1 and 2 D4's ;)

It was on a little wander up to see the view near Melrose last year, not particularly difficult, just a few quite steep bits and lots and lots of sharp rock everywhere.

Celtoid
16th February 2016, 12:12 AM
Lol.. nope, Freelander.

The group was 2 Defenders, a Freelander, a D1 and 2 D4's ;)

It was on a little wander up to see the view near Melrose last year, not particularly difficult, just a few quite steep bits and lots and lots of sharp rock everywhere.


Spectacular view. Yup, lots of rocks.


Cheers,


Kev.

Colin Pedersen
16th February 2016, 11:12 AM
Good to hear others successes, failures and concerns, I posted this as my experience for any one considering a purchase. For the record....the first was front left, second rear left with Trailer, and 3rd front right with trailer.

Between the second and 3rd tear I did do an outback NSW, QLD trip to Bourke, Hungerford, Thargomindah with a station stay and day trip around the property....no issues on the gravel roads. Not unit I get to the slightly more challenging trails that I've had problems (Still well in the realms of an AT tyre's performance).

Ron - if I'd simply had punctures I'd be happy...can plug them up and repair...it's....emotional :mad: to see a tyre with 25% wear as a throw away with a sidewall tear. Interesting to hear Mark had a sidewall failure also.

Eddy - I'd be careful with your tyre pressures, my recommendation is to keep them high (36 to 40 psi) in any sort of rocky environment and hope for the best:-)

From the info here, I'll also have a good look at the Duratrac if it has a better protected sidewall.

Thanks for the comments.

ta

col.