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Banned for no reason !!!
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Discussion Starter #1
Well a bit about my History first so you know i know what i am talking about.

Since i was 17 going back some 38 years now !! yep old codger aint i ? I have been Manufacturing Retreaded Tyres and dealing in Tyres (Tires to the USA Guys ) .

Pirelli in Truck Tyres have always been crap , Pirelli Van Tyres have always been crap , and on cars they seemed to just about hang on long enough to wear the tread out !! Well nearly always anyways.

Pirelli always harped on about having Factories with temperature and humidifying control to ensure Tyre Build stage is totaly dry and hence creating the perfect mix and bond of the Carcas ply to the bonding Cushion rubbers which the top belts sit on prior to the Main tread Compound then sitting on that ..
Sounds great on paper and after the factory visit and all there speel and slideshows we were meant to be impressed ?? Sorry it didnt work as i advised on so many numerous occasions ,they had problems !! Part of my Tyre Business was in retreading Tyres and time after time after time the Pirelli Truck Tyres were riddled with laminations under the tread , Steel belt corrosion due to such a namby pamby wire used , which compared to Michelin which has superb anti rust qualities and tighter bundle wrapping etc.. The Pirelli is substandard , even to the degree that on reliability issues even Cheap Chinese brands like Nankang are far superior !!!!

So now why does this matter to a SLK Forum ? I shall tell you why as from the moment i saw the Car and saw Pirelli Tyres on it ,a state of concern and FEAR hit me !! Hoping that after being advised 10 years ago how crap and weak there Tyre Build and Wire Bonding and Wire quality is !!! Maybe they have improved ? One would think so wouldnt you ? Specialy when you have F1 Grand prix drivers hurtling along at 200mph on them !!! God knows how they would drive if they knew what i know ..

So on my 55 AMG i am about to redo the alloy wheels a total respray and refurb . So off comes the front wheel and straight away i notice the excess balance weights ! A warning sign right ? Then as i roll the tyre the natural automatic cursory tyre check takes place , and to my Horror but NOT total suprise seeings as they are Pirelli . The same old crap Belt problem is there ,with the Top Belt assembly parting on the shoulder in a section !!!

So thanks again Pirelli you useless lot !! As the tyre is to be slung before its worn out . Good news for you rip of merchants !! But bad news for us Customers of your crap Tyres who are forced to have your crap on our Vehicles !!

Do us a favor Pirelli stop making Tyres and make inflatable dinghys instead !!!
 

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even a damaged tyre shouldnt separate like that and as there doesnt seem to be any damage to the rim I would say its not caused by any impact as to cause that it would have to have affected the rim. Thats the sort of problem you expect from poor quality remolds
 

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Banned for no reason !!!
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Discussion Starter #4
Don't hold back, tell us how you really feel !!!!!!!! From the looks of the rim, neither rim nor tire have lead an easy life!
No Tire on a SLK has a easy life , and if this was the only Pirelli ever seen do this and i didnt know about tyres ,like obviously the MOT -ITV Testing station the thicko who kept adding balance weights etc etc ,then i would probably be thinking like you do . But the truth is Pirellis are poor over priced tyres , if i had my way i would just stick another brand on but in Spain you are NOT allowed to mix brands .Not just on the same axle but through the whole car !! So we are forced to put up with there crap tyres which slide in the wet or dry as the compounds way to hard for serious driving , and forced to make a prayer before deciding to go faster than 70mph lol

The average Joe in the street knows zilch on tyres and so Pirelli get away with it time and time again . Watch the GP they are stripping top belt caps regular because they are crap..and those are specially made in a seperate factory unit with the absolute top care ,and even they are crap. so what chance does the rushed through the production line normal tyre stand ?? I will tell you shall i ? 4% yep a 4% failure rate thats 4 suckers in every 100 who pay top prices who are gonna get a bad one, and be stuffed to replace it , as its back hander factory fitments so a captive market !!





even a damaged tyre shouldnt separate like that and as there doesnt seem to be any damage to the rim I would say its not caused by any impact as to cause that it would have to have affected the rim. Thats the sort of problem you expect from poor quality remolds

Correct no damage to the tyre whatsoever , I have checked the tyre for penetrations and obvious issues , heck thats what i did for 20 years ,insurance investigations, reports on tyre failures ie, run flats , overloads, underinflations etc on tyres .

For me money no object Michelin every time .. If money tight then the Nankang tyres are superb for value for money .. But Pirelli !! Suitable for Ford Fiestas and NOT performance Cars in my opinion ..
 

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I am very happy with the Avon ZV5's I have on the rears. and the ZZ3's on the fronts. which is good as I have two more wheels with almost new ZZ3's on them :)
 

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Have had Pirelli P7 on our since day one. Not had Amy issues at all. Will buy another set of rears soon, current pair are down to 3.5mm.
 

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Banned for no reason !!!
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Discussion Starter #7
I am very happy with the Avon ZV5's I have on the rears. and the ZZ3's on the fronts. which is good as I have two more wheels with almost new ZZ3's on them :)
Avons are good and run a nice soft compound for great grip etc, Well if it wasnt for the silly "Must have same brand type tyres ALL round" i would fit 2 new Nankangs on the front , cheap and brilliant tyres slightly softer compound than Michelins and contis but boy do they stick to the road in wet or dry and gave a feel of real safe roadholding .. BUT alas i cant so i am going to have to get another Pirelli and so the cycle repeats as when the backs get lower obviously the fronts will still be good !!

So its back to the crap Pirellis yet again . Thats why they get the Original fitment market on new vehicles even giving them at giveaway deals in most cases , as they know . Once they have us suckers they have us big time ..

Pirellis in the wet is a nightmare , they are just horrible tyres . Ok for a dry country and a little old ladies VW Polo but a performance car .. yikes not through choice thats for sure ..
 

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Discussion Starter #8
Have had Pirelli P7 on our since day one. Not had Amy issues at all. Will buy another set of rears soon, current pair are down to 3.5mm.
And have you checked internaly around the inner shoulder region lately ? and have you pushed the car in the wet ?

Obviously not all fail or they would be out of business . Pirellis are fine for plodding and 40mph down a country lane , as is a Chinese budget tyre , But in my opinion they should NOT be standard fitment on a SLK55 AMG which has power the tyres cant handle obviously..
Even in the dry a rapid acceleration in the dry kicks them out , and in the wet holy jeeez nasty tyres ..
 

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Thank you for the thread. Many people know a little about a lot. Specific iformation re: any brand especially tires is appreciated.

I just bought a set of conti's a few weeks ago and have been very happy with them.
 

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Discussion Starter #10
its not just me who know there crap , the GP drivers know but there paid to drive on them !!

original link to the full story here . http://www.f1fanatic.co.uk/2013/05/23/vettel-attacks-unsafe-pirelli-tyres/

qoute from
"Sebastian Vettel launched a stinging attack on Pirelli’s tyres in the build-up to the Monaco Grand Prix, describing them as unsafe. “I think we’ve seen a couple of occasions this year where, I don’t want to talk bad about people, but they have to do a better job on safety grounds,” said Vettel.
The reigning world champion said the tyre delaminations suffered by drivers in recent races had not been caused by debris, as Pirelli have claimed.
“We saw that people suffered the tyre, the surface, the tread delaminating and blowing up,” he said. “Fortunately nothing happened but it’s not because drivers drove over debris it’s because the tyre’s simply not good enough and that can’t be safe.”
 

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And have you checked internaly around the inner shoulder region lately ? and have you pushed the car in the wet ?

Obviously not all fail or they would be out of business . Pirellis are fine for plodding and 40mph down a country lane , as is a Chinese budget tyre , But in my opinion they should NOT be standard fitment on a SLK55 AMG which has power the tyres cant handle obviously..
Even in the dry a rapid acceleration in the dry kicks them out , and in the wet holy jeeez nasty tyres ..
Oh no, I never drive our SLK quickly or go around corners at speed......... Ask any of the guys that have been stuck behind me on a sheep chase.... :biglaugh:

We have different cars, different tyres and different experience. The P7 on our SLK 200 perform well in dry and wet conditions and have not failed in 44,000 miles. The fronts did 30k and three years before I changed them. The rears last between 15k-18k miles to get to 3mm where I change them.

I have also driven at least one car with more power and performance than an SLK 55 AMG on Pirelli P zero tyres without difficulties. This around the test track, pedalling pretty hard too.

Clearly you have had problems with them and that's not good at all. Hopefully, some other make of tyre will work for you.
 

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its not just me who know there crap , the GP drivers know but there paid to drive on them !!

original link to the full story here . http://www.f1fanatic.co.uk/2013/05/23/vettel-attacks-unsafe-pirelli-tyres/

qoute from
"Sebastian Vettel launched a stinging attack on Pirelli’s tyres in the build-up to the Monaco Grand Prix, describing them as unsafe. “I think we’ve seen a couple of occasions this year where, I don’t want to talk bad about people, but they have to do a better job on safety grounds,” said Vettel.
The reigning world champion said the tyre delaminations suffered by drivers in recent races had not been caused by debris, as Pirelli have claimed.
“We saw that people suffered the tyre, the surface, the tread delaminating and blowing up,” he said. “Fortunately nothing happened but it’s not because drivers drove over debris it’s because the tyre’s simply not good enough and that can’t be safe.”
F1 tyres are rather different from road tyres. I do think they (pirelli) have so far got it wrong this year. Tyres should not be delaminating, very dangerous. luckily nothing major has resulted so far. As I understand it they have tried to respond to a changed brief from last year. Essentially the tyres are limiting how much downforce can be usefully generated, with some cars producing more than the tyre can cope with.

Not very good for F1 or their corporate image either. I hope they can sort it out.
 

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Long Time Member 2005 slk350
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Oh no, I never drive our SLK quickly or go around corners at speed......... Ask any of the guys that have been stuck behind me on a sheep chase.... :biglaugh:

.
Stuck :confused: must be a new term for held up :biglaugh::biglaugh::biglaugh::biglaugh:


Back on Thread

would the average tyre temp be higher on a car in spain than on uk rds ?

it may make a difference to the life of a tyre from one area of the world to another
 

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Tyres like the rest of F1 has gone beyond sensible sport. Make them race on one set that would sort the men from the boys :)
 

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Stuck :confused: must be a new term for held up :biglaugh::biglaugh::biglaugh::biglaugh:


Back on Thread

would the average tyre temp be higher on a car in spain than on uk rds ?

it may make a difference to the life of a tyre from one area of the world to another
Yeah I meant holding others up... :D

I would not be surprised if the road surface temperature was much higher in Spain than it typically is in the UK and agree that could make a big difference to tyre durability.

They shouldn't fail though. If I had those sort of problems with a tyre, I'd be pretty displeased too..
 

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The grip wasn't any good either. I swapped to Dunlop Direzza Z1 Star Specs before my Pirellis wore down. Now I'm using Dunlop Direzza Z2s.
 

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Well a bit about my History first so you know i know what i am talking about.

Since i was 17 going back some 38 years now !! yep old codger aint i ? I have been Manufacturing Retreaded Tyres and dealing in Tyres (Tires to the USA Guys ) .

Pirelli in Truck Tyres have always been crap , Pirelli Van Tyres have always been crap , and on cars they seemed to just about hang on long enough to wear the tread out !! Well nearly always anyways.

Pirelli always harped on about having Factories with temperature and humidifying control to ensure Tyre Build stage is totaly dry and hence creating the perfect mix and bond of the Carcas ply to the bonding Cushion rubbers which the top belts sit on prior to the Main tread Compound then sitting on that ..
Sounds great on paper and after the factory visit and all there speel and slideshows we were meant to be impressed ?? Sorry it didnt work as i advised on so many numerous occasions ,they had problems !! Part of my Tyre Business was in retreading Tyres and time after time after time the Pirelli Truck Tyres were riddled with laminations under the tread , Steel belt corrosion due to such a namby pamby wire used , which compared to Michelin which has superb anti rust qualities and tighter bundle wrapping etc.. The Pirelli is substandard , even to the degree that on reliability issues even Cheap Chinese brands like Nankang are far superior !!!!

So now why does this matter to a SLK Forum ? I shall tell you why as from the moment i saw the Car and saw Pirelli Tyres on it ,a state of concern and FEAR hit me !! Hoping that after being advised 10 years ago how crap and weak there Tyre Build and Wire Bonding and Wire quality is !!! Maybe they have improved ? One would think so wouldnt you ? Specialy when you have F1 Grand prix drivers hurtling along at 200mph on them !!! God knows how they would drive if they knew what i know ..

So on my 55 AMG i am about to redo the alloy wheels a total respray and refurb . So off comes the front wheel and straight away i notice the excess balance weights ! A warning sign right ? Then as i roll the tyre the natural automatic cursory tyre check takes place , and to my Horror but NOT total suprise seeings as they are Pirelli . The same old crap Belt problem is there ,with the Top Belt assembly parting on the shoulder in a section !!!

So thanks again Pirelli you useless lot !! As the tyre is to be slung before its worn out . Good news for you rip of merchants !! But bad news for us Customers of your crap Tyres who are forced to have your crap on our Vehicles !!

Do us a favor Pirelli stop making Tyres and make inflatable dinghys instead !!!

Hi, did you check balance weight without tyre?. Your rims doesn´t seem to be in perfect shape. Try it before and after.

Did you spend a little bit traying to do a good aligment to your slk before checking the tyres?. I would have spent my time bringing my car for a better set up before trying to anounce something that´s not true at all.

The tyre you are runinng , the Rosso one is a tyre that was design more than 10 years ago ( i am pretty sure that you bought that tyre more than 2-3 years ago).

It has been used as first equip in powerfull / sport cars as the Seat Leon Cupra-R for years. The only problem with this tyre was that it had to be inflated 0,4-0,5 bar over the recommended pressure. Check it!

On the other hand, the new P-Zero is one of the best tyres we have used on our AMG ( E63), the better grip and the best longevity vs continental, goodyear and bridgstone.

The tyre you should be using is the assymetric, not ther rosso, or even the corsa. I think you did´t take the right decision wearing the Rosso. For the next time trust your SLK for a better tyre and a better aligment, as you had that problem due to the poor alignment not due to the tyre issue. My 2 cents.
 

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ssgti,

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