Gran Premio Motul de la República Argentina 2017

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Nicolas Goubert - Michelin Racing Technical Director

Q: Once you lose the tread you’ve still got some depth of carcass. That is sufficient for safety?

NG: The thing is you’re not losing all the tread. So you’re always running on some of the compound basically. I need to say for the tire brand, when you have over heating with a wet tire which is used on a dry surface, you lose chunks of compound, but you continue running on what’s left. You can go like that for quite a while. If it’s mid-race, for example, people come in. If you get two or three more laps to do, you can do them. So, not concerned. Safety is not at stake.

As I added to my post after a subsequent post of yours and before your reply, given an example of a gp tyre ever previously delaminating in any conditions and it not being considered a tyre failure, and anything other than a motherhood arse-covering statement about rider safety from the manufacturer of the defective tyre in this instance. We all know that conditions were involved in the tyre failing, but fail it did, and much earlier in the race when it was still rather wet in Dovi's case.
 
As I added to my post after a subsequent post of yours and before your reply, given an example of a gp tyre ever previously delaminating in any conditions and it not being considered a tyre failure, and anything other than a motherhood arse-covering statement about rider safety from the manufacturer of the defective tyre in this instance. We all know that conditions were involved in the tyre failing, but fail it did, and much earlier in the race when it was still rather wet in Dovi's case.

You're right, a wet tire shouldn't suffer any type of failure when used in the dry. Just like a motorcycle shouldn't sink if ridden into a lake (billabong for you Aussies), it's a matter of safety because the rider may not be able to swim. :rolleyes:
 
You're right, a wet tire shouldn't suffer any type of failure when used in the dry. Just like a motorcycle shouldn't sink if ridden into a lake (billabong for you Aussies), it's a matter of safety because the rider may not be able to swim. :rolleyes:

Examples of previous delamination beong considered normal wear and tear, or any evidence at all that Michelin predicted or expected the tyre to fail by delamination thanks; if they did anticipate delamination and gave no warning they were actually frankly negligent. It is increadingly amusing that you keep ignoring what happened with Dovi's tyre, as well as continuing to imply as you did when this matter was previously discussed that Valentino who was also one of the fastest riders knew where the threshold of delamination lay even though he could not have known that the tyres would delaminate and somehow rode below that threshold.
 
You're right, a wet tire shouldn't suffer any type of failure when used in the dry. Just like a motorcycle shouldn't sink if ridden into a lake (billabong for you Aussies), it's a matter of safety because the rider may not be able to swim. :rolleyes:

Examples of previous delamination beong considered normal wear and tear, or any evidence at all that Michelin predicted or expected the tyre to fail by delamination thanks; if they did anticipate delamination and gave no warning they were actually frankly negligent. It is increasingly amusing that you keep ignoring what happened with Dovi's tyre, as well as continuing to imply as you did when this matter was previously discussed that Valentino who was also one of the fastest riders knew where the threshold of delamination lay even though he could not have known that the tyres would delaminate and somehow rode below that threshold.
 
Examples of previous delamination beong considered normal wear and tear, or any evidence at all that Michelin predicted or expected the tyre to fail by delamination thanks; if they did anticipate delamination and gave no warning they were actually frankly negligent. It is increadingly amusing that you keep ignoring what happened with Dovi's tyre, as well as continuing to imply as you did when this matter was previously discussed that Valentino who was also one of the fastest riders knew where the threshold of delamination lay even though he could not have known that the tyres would delaminate and somehow rode below that threshold.

I envy you a little bit because you must have considered Brno 2016 to be one of the world's greatest wonders since you have absolutely no understanding why anything happened the way it did. It must have been an event of biblical proportions as far as you were concerned. Absolutely astonishing!
 
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I envy you a little bit because you must have considered Brno 2016 to be one of the world's greatest wonders since you have absolutely no understanding why anything happened the way it did. It must have been an event of biblical proportions as far as you were concerned. Absolutely astonishing!

There are things for which you could probably envy me, but lack of understanding of almost anything, including GP bike racing, in comparison with you is almost certainly not such a thing.
 
Lornezo who's known for his light(comparatively) braking and high corner speed has a tyre delaminate right in the middle where the braking pressure is on. Rossi who's known for being a great late braker without which he struggles to be competitive has no tyre issues at all despite being far harder on tyres while braking than Lorenzo. But yeah it's not a tyre failure.

It's a good attempt though Vudu but we are all stupider for trying to see your logic and reasoning.
 
For the record Vudu not even Mayweather truly believes he is undefeated. He had a clear loss to Castillo but was given a gift decision. If he really thought he deserved it he wouldn't have made sure to fight Castillo after being out-punched and out-landed.
 
Lornezo who's known for his light(comparatively) braking and high corner speed has a tyre delaminate right in the middle where the braking pressure is on. Rossi who's known for being a great late braker without which he struggles to be competitive has no tyre issues at all despite being far harder on tyres while braking than Lorenzo. But yeah it's not a tyre failure.

It's a good attempt though Vudu but we are all stupider for trying to see your logic and reasoning.

Lorenzo was on the soft wets that were not the right choice for a drying track, Rossi chose the hard tyre that was the right choice. FACTS!
 
That's right... I'm undefeated.

vTGK22l.jpg

So you choose to align yourself with a known wife beater?

Says a lot about who you really are as a person that you think domestic violence is a laughing matter.
 
For the record Vudu not even Mayweather truly believes he is undefeated. He had a clear loss to Castillo but was given a gift decision. If he really thought he deserved it he wouldn't have made sure to fight Castillo after being out-punched and out-landed.

You may be right.

So you choose to align yourself with a known wife beater?

Says a lot about who you really are as a person that you think domestic violence is a laughing matter.

49 - 0 in the ring, 7 - 0 in domestic disputes
 
You just witnessed me knock out JPS with the crash.net article. He still hasn't recovered.

1253698241_one_punch_ko.gif

You haven't knocked me out. That you're celebrating the way you are pretty much shows how badly you have had your ... handed to you that you were desperate to get any kind of "win" even though most of us aren't looking at this stuff as wins or losses.

There's more to that story than is being mentioned, so I wouldn't be so quick to call it a win. ;)
 
49 - 0 in the ring, 7 - 0 in domestic disputes

I'm not even surprised you are a Mayweather fan. It keeps with your MO of affixing your tribal banner to anyone with whom you perceive to have all of the success in the world that you wish you could have, but never will. Just one more glory hunter.
 
You may be right.



49 - 0 in the ring, 7 - 0 in domestic disputes

I do believe it is even more unlikely that you are Roger Mayweather than it is that you are Valentino Rossi, much though the general tenor of your posts would seem to assume the latter.
 
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Lorenzo was on the soft wets that were not the right choice for a drying track, Rossi chose the hard tyre that was the right choice. FACTS!

Facts are that they had the same tyres, and Lorenzo's similar tyre delaminated as did Dovi's similar front much earlier. The guy who was on soft wet tyres front and rear was actually MM.
 
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You're just regurgitating the same erroneous points that some of you attempted to make last year and I easily refuted all of them.

Ford & Firestone got sued for millions because they were aware of the high rates of failure and potential for rollovers and didn't inform the NHTSA. Ford chose to lower the recommended tire pressures so they wouldn't have to redesign the Explorer's suspension and track width to help prevent rollovers.

Nice use of google/Wikipedia there (you pretty much copied and pasted what's on the Wikipedia page about it). However, working in the industry I can tell you that you don't have all the facts and it is not as cut and dried as you like to try and point out.

You're now comparing Bridgestone HARD wet tires to Michelin SOFT wet tires. We've seen the Bridgestone hard wet tires begin to chunk when used on a dry track for too long. If a hard wet tire (which has been designed to tolerate some use in the dry) struggles to cope with heat and forces in the dry, it's common sense how vulnerable a soft wet tire will be under the same conditions.

Chunking is not the same as delaminating. Chunking is when overheated rubber melts and forms into chunks. Delaminating is when the rubber separates from the carcass.
 
Great post 22... Blows my mind how people think chunking and delaminating are the same thing...
 
Nice use of google/Wikipedia there (you pretty much copied and pasted what's on the Wikipedia page about it). However, working in the industry I can tell you that you don't have all the facts and it is not as cut and dried as you like to try and point out.



Chunking is not the same as delaminating. Chunking is when overheated rubber melts and forms into chunks. Delaminating is when the rubber separates from the carcass.

Who said chunking and delaminating is the same thing? Chunking would actually be worse than the delmanination seen at Brno, yet some of you are up in arms over Lorenzo's center strip coming off as he abused the tire on a dry line. My point was the hard Bridgestones chunked when used in the dry too long whereas the soft Michelins only delaminated (carcass integrity wasn't affected).

You attempted to compare Hard wet Bridgestones to Soft wet Michelins and now you're trying to tell me the difference between chunking and delamination when I've been explaining it for over a year? This subject has many of you very confused and grasping at straws. I just find it odd that for as long as you've been watching racing you haven't seen enough proof of wet tires chunking AND/OR delaminating on a dry surface to know that Brno 2016 wasn't an anomaly.
 
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Who said chunking and delaminating is the same thing? Chunking would actually be worse than the delmanination seen at Brno, yet some of you are up in arms over Lorenzo's center strip coming off as he abused the tire on a dry line. My point was the hard Bridgestones chunked when used in the dry too long whereas the soft Michelins only delaminated (carcass integrity wasn't affected).

You attempted to compare Hard wet Bridgestones to Soft wet Michelins and now you're trying to tell me the difference between chunking and delamination when I've been explaining it for over a year? This subject has many of you very confused and grasping at straws. I just find it odd that for as long as you've been watching racing you haven't seen enough proof of wet tires chunking AND/OR delaminating on a dry surface to know that Brno 2016 wasn't an anomaly.
No, the objection is to sudden tyre delamination in any circumstance.
 
MotoGP: The key to Pedrosa’s success - September 12, 2016

Dani Pedrosa suddenly rebounds from a rider struggling to make the top five, to winning the Misano MotoGP...how did this happen?

How is it that we have witnessed two very different Dani Pedrosas within one week? Seven days earlier at Silverstone it was notable that Pedrosa was the only rider in the lead group that had not passed anyone. We were also critical of his failure to defend his position before his teammate’s attack on the last two laps of the race. And now, just seven days later, it was the exact opposite: Pedrosa was by far the most discerning rider when overtaking, with an absolute killer instinct. What was this magic potion that Pedrosa took between Silverstone and Misano?

In his post-race interviews, Pedrosa explained that what happened was a result of both a change of work processes in the team box and a risky tire choice that made all the difference in the race. "I hadn’t tested the (front) tire in any afternoon practice, only in the morning," Pedrosa revealed. "But I followed my gut instinct...and I was right. I confess that on the starting grid I had butterflies in my stomach because I knew I was the only one who had decided to use that tire."

The tire in question was a new front with stiffer carcass that Michelin brought for the first time to a GP. There were two versions: one with a softer composition than the other—and only Pedrosa chose the softer compound.
 

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