Cooper ST

Submitted: Tuesday, Feb 26, 2008 at 09:54
ThreadID: 54941 Views:4071 Replies:12 FollowUps:18
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Hi new to this question I have Cooper ST 285 75 R16 done 40,000 klm the tread is now like a saw tooth pattern from the front of the lug to the back 5mm difference on two tyres and 3mm on the other 3 Cooper blame my suspension system on the Patrol GU and said they the GU are common for wearing out tyres so no warranty problem now found Toyota Ute 10,000 same problem and also 5 other 4x4 same problem one has them on a T-Van worn down to 5mm the same as my two but that's on a trailer anyone else had this issue with the ST's.
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Reply By: stefan P (Penrith NSW) - Tuesday, Feb 26, 2008 at 10:24

Tuesday, Feb 26, 2008 at 10:24
Do a forum search.....HUGE problem I am led to belive

Hope you have 4 spare days to read them all

Good luck

Cheers Stefan
AnswerID: 289439

Follow Up By: Little Ray - Tuesday, Feb 26, 2008 at 11:30

Tuesday, Feb 26, 2008 at 11:30
I am like a dog with a bone Cooper will remember me for a long time, will test the warranty to the max
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Reply By: cYc - Tuesday, Feb 26, 2008 at 10:34

Tuesday, Feb 26, 2008 at 10:34
Every one has issues with coopers they are the best tyre in the world.

Well that's what they recon in there adds

All the best
Eric

Cape york connections
AnswerID: 289440

Reply By: Member - Bob V (QLD) - Tuesday, Feb 26, 2008 at 11:12

Tuesday, Feb 26, 2008 at 11:12
How often have you rotated them? The firm that I bought mine from swap them around free every 5 thousand Ks. Mine are the HT 275 75 17 on a 100 series
AnswerID: 289447

Follow Up By: Little Ray - Tuesday, Feb 26, 2008 at 11:26

Tuesday, Feb 26, 2008 at 11:26
They are rotated every 10,000 all have been once around the patrol as well as the spare all doing the same.
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Reply By: Member - Andrew D (VIC) - Tuesday, Feb 26, 2008 at 11:15

Tuesday, Feb 26, 2008 at 11:15
Have moved from BFG AT's to Cooper ST's.
Have had them for approx 10,000 kays and they are chopped up and worn.
Biggest mistake I ever made.

Live and learn I suppose.
Your lack of planning does not constitute my emergency.

Member
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AnswerID: 289449

Follow Up By: Little Ray - Tuesday, Feb 26, 2008 at 11:33

Tuesday, Feb 26, 2008 at 11:33
So did I same mistake send me your name and phone number and truck details will add to the claim list with consumer affairs as well if you want
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Reply By: Member - Captain (WA) - Tuesday, Feb 26, 2008 at 11:33

Tuesday, Feb 26, 2008 at 11:33
Hi Ray,

Everyone has an opinion on Coopers and I have had an excellent run with them. But they are prone to scalloping unless you rotate them regularly.

I do this every 5,000kms to the 285/75 ST's on my GU and achieved over 80,000kms with very even wear on my first set and now have 25,000 kms on my second set and expect to get at least 80,000kms out of them.

A lot of factors affect tyre wear so very hard to compare unless on the same vehicle under the same conditions. But interestingly I went away from BFG T/A's after a bad experience with them yet others are saying the exact opposite. Just goes to show that not all experiences are the same!!!

Cheers

Captain
AnswerID: 289450

Reply By: Steve63 - Tuesday, Feb 26, 2008 at 13:05

Tuesday, Feb 26, 2008 at 13:05
Interesting issue. I have used Coopers and BFG. With the Coopers you NEED to do all the recommended things ie rotate and wheel alignment etc. If treated this way you ususally get a good run out of them. I was orignially disapointed but in retrospect I think the issue is that you compare your own experience to the hype. The more hype the more disappointed you will be. I found the BFG AT's "better" but in reality I asked a few people what they use. At the time BFG were the go but all I got told was "using BFG's and they seem to be ok". So there was no hype. In reality they performed similarly (maybe a bit more chipping). These days I use splits, not very sexy at present so no hype. I usually avoid issues by changeing them early. I'm happy to see the back of them even if they have 20,000km left on them if I am about to do a 15,000km trip. Why on earth people go to remote areas with tyres that are on there death beds then complain about the number of punctures is still a mystery to me. If you are that upset about it keep the rubber and use them locally not on a long trip. You get enough punctures without getting a few that would have been avoided with a bit more rubber.

Steve
AnswerID: 289458

Follow Up By: Little Ray - Tuesday, Feb 26, 2008 at 20:18

Tuesday, Feb 26, 2008 at 20:18
Hi Steve
Had the wheel alignment and front end check and was told nothing wrong all tested fine but they could not believe what the tyres looked like.
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Follow Up By: Steve63 - Wednesday, Feb 27, 2008 at 09:30

Wednesday, Feb 27, 2008 at 09:30
Hi Ltl Ray,
I got over the whole tyre thing a fair while ago. I refuse to listen to any of the marketing garbage anymore. I just use 7.5R16 on splits now. You can get them anywhere and they are usually a LT construction. I found meeting the warranty conditions for the Coopers a bit like hard work.

Steve
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Reply By: Anthony (Vic) - Tuesday, Feb 26, 2008 at 13:07

Tuesday, Feb 26, 2008 at 13:07
G'day Little Ray,

Yes, its annoying when the tyre wears like that. The starting point to find the solution is get a wheel alignment and rotate your tyres more regularly.

IMHO, this type of wear is independent of tyre brand.

cheers Anthony
AnswerID: 289460

Follow Up By: Leroy - Tuesday, Feb 26, 2008 at 13:42

Tuesday, Feb 26, 2008 at 13:42
Regular tyre rotation is the key. My tyres scallop driving up and down through the mountains all the time. I need to regulary rotate my tyres to keep on top of the scallopping.

Leroy
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Reply By: Shaker - Tuesday, Feb 26, 2008 at 14:42

Tuesday, Feb 26, 2008 at 14:42
My experience with both Cooper tyres & their so called "warranty" was dreadful.

As far as i'm concerned, buying Cooper tyres after reading this forum is like playing 'Russion Roulette' with 5 bullets in the gun!
AnswerID: 289469

Follow Up By: jeepthing - Tuesday, Feb 26, 2008 at 16:33

Tuesday, Feb 26, 2008 at 16:33
Absolutely nothing to do with tyre rotation!! I had problems with my first set of Coopers in the early stages one disintergrated on the highway, got it replaced under warranty at Derby wouldn't have travelled 200k down the Gibb river and a puncture. After that had no further problems. Changed vehicles about a year later and thought I'd give them another go...was travelling on gravel near Mt Augustus and a rock went straight through the tread. Tyre was badly chipped others were not.
Coopers wouldn't replace only gave me a 50% discount on a new tyre. If you are ever in Newman go to Newman tyres and have a look at all the destroyed Coopers..they do not like our stone country. By the way pressures were perfectly set for the country I was in according to Coopers.
Far as I'm concerned they are overrated but are well sold through their marketing hype. Bridgestone tyres are the preferred tyre in the iron country of the Pilbara and are used by the mining companies that's basically all that Newman tyres stock.
If you look in the Cooper thread on this site they are the most copmplained about tyre.
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Reply By: howesy - Tuesday, Feb 26, 2008 at 16:29

Tuesday, Feb 26, 2008 at 16:29
Well well, I used to get caned a couple of years ago when I bagged Coopers and now it seems the test of time has created more critics.
I still maintain to this day that with regular rotating at 5000 and constant checks and adjustmaent to tyre pressures I can get Coopers 80K out of most tyres half their price.
Just look at the coopers publicity machine it reminds me of a diesel bloke who goes to all the shows and advertises being the best and I wouldn't spit on his work either.

I came to the conclusion that providers of good products dont have to advertise, happy customers do it for them.
AnswerID: 289485

Follow Up By: jeepthing - Tuesday, Feb 26, 2008 at 16:36

Tuesday, Feb 26, 2008 at 16:36
To true howesy...I had Dunlop Roadgrippers on my camper not a chip not a puncture in over 50,000k
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Reply By: Member - Oldbaz. NSW. - Tuesday, Feb 26, 2008 at 16:47

Tuesday, Feb 26, 2008 at 16:47
What a failure I am at this tyre game...run Firestone Firehawk RMT
on Hilux Sprayrig, 80% offroad , never rotate, never needed wheel alignment in 500k & never experienced any scalloping
either. All run at 50psi all the time. If you fiddle around with pressure or run too low you will wear the consequences, pun intended. This includes Coopers, only ever had 2. one staked on second day, the other still carried as spare...no scalloping on it
either. That explains it all for me, or am I just lucky :)))...oldbaz.
AnswerID: 289490

Follow Up By: Member - Davidp P (VIC) - Tuesday, Feb 26, 2008 at 17:15

Tuesday, Feb 26, 2008 at 17:15
tye pressures.. thats interesting. Thats what I was told when I did a murcott course at Sandown (sedan driver training) but they insisted that HIGHER tyre pressures were better on all surfaces ,other than sand, if you wanted to avoid punctures and obviously better fuel economy. That was their opinion based on experience including gibber rocks where they said they had never had a punture under those conditions
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Follow Up By: Shaker - Tuesday, Feb 26, 2008 at 19:32

Tuesday, Feb 26, 2008 at 19:32
Firehawk RMTs are the best kept secret in Australia, it has been like a breath of fresh air t use them after my experiences with Coopers.
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Follow Up By: Member - Davidp P (VIC) - Tuesday, Feb 26, 2008 at 19:42

Tuesday, Feb 26, 2008 at 19:42
Firestone s are a more affordable way of getting Bridgestone quality
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Follow Up By: Little Ray - Tuesday, Feb 26, 2008 at 20:15

Tuesday, Feb 26, 2008 at 20:15
Interesting Oldbaz cooper told me I should run the tyre pressures at 32 to 34 psi max on my 285 75 R16
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Follow Up By: Shaker - Tuesday, Feb 26, 2008 at 23:19

Tuesday, Feb 26, 2008 at 23:19
Cooper told me 38psi on bitumen, 28psi on Outback tracks, as a rule of thumb.
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Follow Up By: jeepthing - Wednesday, Feb 27, 2008 at 09:05

Wednesday, Feb 27, 2008 at 09:05
If you talk to the tyre dealers, locals and the old timers in the west they say run your pressures high for outback tracks 38/40psi, they do not agree with running lower pressures.
They believe that the higher pressure flicks the rocks out of the way and stops sidewall penetration. Their view is that lowering pressure will HOLD a sharp rock making the chances of penetration in the tread area higher, and increases side penetration.
In the heat of the summer pressures on the black top must be set at the max cold pressure for the tyre because the heat on tar increases heat build up on tyres. They say Coopers cannot handle their heat and that Bridgestone are the best all round tyre over there. Problem is I can't get a Bridgestone in my vehicle's tyre size.
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Follow Up By: Member - Oldbaz. NSW. - Wednesday, Feb 27, 2008 at 16:42

Wednesday, Feb 27, 2008 at 16:42
G'day Gents, my post is based on my experience. I doubt many on this forum have done more offroad ks, albeit mine are low range, 2nd gear stuff, about half in 4wd. I threw tyres of all brands away weekly till I got to 50psi. I havent fatally wounded one since. As said I only run Firestone RMT now, cheap A/T but
not available in all sizes, a great tyre. Last year I did 13k outback..
Oodnadatta,Mereenie,Tanami GRR with 2 new BFG A/T on rear
& two 30% Siverstone Highway Patterns on front (Jackaroo
towing C/t) without a puncture, all run at 40 psi. No way will I reduce pressure anywhere except mud/sand. Tyre dealer in Alice
said run BFG at 40 psi minimum. Everyone has an opinion, mine
is experience , not hearsay based, & my pressures are based on that. Of course the choice is entirely yours, tyres & pressure :))...oldbaz.
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Reply By: Crackles - Tuesday, Feb 26, 2008 at 19:17

Tuesday, Feb 26, 2008 at 19:17
Ray as much as I detest Coopers at the best of times in this case scalloping may not necessarily be the tyres fault & is quite likely a result of an alignment, suspension or balance issue. Rotating tyres that are stepped like this is only masking the problem although it does tend to square them up & increase their life. Coopers tread compound may make them more susceptible to stepping but I doubt it's the root cause.
We have F250's that step the tyres requiring them to be rotated at 15K or if you don't they are just uncontrollable by 20K. Others have simply fixed the problem with a castor correction kit but Orix fleet are too tight to do the repair on ours choosing instead to replace tyres more often.
Cheers Craig..........
AnswerID: 289518

Follow Up By: Little Ray - Tuesday, Feb 26, 2008 at 20:24

Tuesday, Feb 26, 2008 at 20:24
Hi Craig
Had the front end checked they could not find a thing wrong only 8 months ago I changed the suspension to Iroman king springs and Ironman foam shocks all weight tested and set for the extra weight around the Patrol they have been great but the problem started before they were fitted
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Follow Up By: Crackles - Tuesday, Feb 26, 2008 at 20:52

Tuesday, Feb 26, 2008 at 20:52
Out of curiosity was it the installer of the suspension system that checked and found nothing wrong or a 2nd party? Did they fit castor correction bushes?
Cheers Craig......
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Follow Up By: Little Ray - Wednesday, Feb 27, 2008 at 09:45

Wednesday, Feb 27, 2008 at 09:45
Thats interesting it was a local 2nd party and they are a tyre dealer and also sell coopers
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Reply By: Kiwiausie - Wednesday, Feb 27, 2008 at 00:22

Wednesday, Feb 27, 2008 at 00:22
hi . I had a set of cooper st and was lucky to get 20.000km out of them on my old GQ I rotated every 5.000km . they were only used for trips as i have a full set of road tyres that i run when at home . Then i tried a set of Goodyear Wrangler MTR'S . They have done 2 big trips , Cape York & Simpson Desert also 12-15 trips to Four Wheel Drive Parks .. approx 18.000km sure they are pretty cut up . but no uneven wear or scolloping all tread depth same . I reckon i will get at least 1 more big trip out of them maybe more ......also not one punture . I still think it is the hard black stuff that kills the tyres
AnswerID: 289590

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