Michelin tire failure - anyone see the video? - Kawasaki ZX-10R.net
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post #1 of 18 Old 02-08-2016, 09:04 PM Thread Starter
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Michelin tire failure - anyone see the video?

I guess Michelin had a pretty spectacular rear tire failure on Loris Baz' bike, it blew out on the front straight while testing. They are now pulling the "soft" compound tire from testing.

No one was hurt. Video is on youtube somewhere.

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post #2 of 18 Old 02-08-2016, 09:30 PM
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A couple of links



https://youtu.be/vHenAQhF8H0

https://youtu.be/lJypSm1XySE
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post #3 of 18 Old 02-09-2016, 02:13 PM
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post #4 of 18 Old 02-09-2016, 04:13 PM
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Yes Baz's suit recorded a 29.9 g impact on his shoulder. Michelin has a lot of homework to do if their going to make a tire that will work in Motogp.
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post #5 of 18 Old 02-09-2016, 05:40 PM
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MotoGP: The Sepang Michelin incident?too tight a margin? | Sport Rider

Might want to give that a read... doesn't look like all the blame is on Michelin. Typical constructor blaming manufacturer and vice versa.

Tires seemed to be underinflated some and now internal TPS are mandated.
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post #6 of 18 Old 02-09-2016, 06:11 PM
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Didn't see the video ... did see a still of the tire...

I'd be blaming Michelin... Can't believe the tire was under-inflated to a lower pressure than is a race pressure.

And ... I've never seen a failure like that.
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post #7 of 18 Old 02-09-2016, 08:06 PM
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yeah, pro guys often hate Mich for a list of reasons. Usually psi pressure is sensitive. Mich corp got frustrated and pulled out of pros awhile back if I recall.
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post #8 of 18 Old 02-09-2016, 09:04 PM
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It was the rear tire that failed.

Frankly, it's nothing new. Akira Yanagawa had a tire fail at 180+ mph and wadded the ZXRR Motogp bike years ago. Dunlop has had catastrophic failures in AMA at Daytona. It happens when they are trying to get the tires figured out and what pressures to run. It's all part of the process. A scary one for the riders for sure. And luckily no one has been seriously injured by it. But the process will continue and get sorted out and fixed. Michelin isn't a fly-by-night retreaded tire. They were the premiere tire supplier back when it was a competition and just need to get back in the game with these new bikes.

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post #9 of 18 Old 02-09-2016, 09:18 PM Thread Starter
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Quote:
Originally Posted by SkyDork View Post
It was the rear tire that failed.

Frankly, it's nothing new. Akira Yanagawa had a tire fail at 180+ mph and wadded the ZXRR Motogp bike years ago. Dunlop has had catastrophic failures in AMA at Daytona. It happens when they are trying to get the tires figured out and what pressures to run. It's all part of the process. A scary one for the riders for sure. And luckily no one has been seriously injured by it. But the process will continue and get sorted out and fixed. Michelin isn't a fly-by-night retreaded tire. They were the premiere tire supplier back when it was a competition and just need to get back in the game with these new bikes.
Tire pressures are critical when you get to the low or high end of the range. That's why those guys get paid the big bucks.

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post #10 of 18 Old 02-10-2016, 09:00 AM
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Quote:
Originally Posted by White Fang View Post
Tire pressures are critical when you get to the low or high end of the range. That's why those guys get paid the big bucks.
Yes, Tire pressures are crucial. I'm sure they have baselines and calculations they go by to determine the tire pressures to start with. But there are tons of variables and data is the the key. They may have been experimenting with outlier pressures to see the response. Or Baz's riding style is that much different than the others who didn't have a problem and overwhelmed the tire, the bike wasn't setup properly and over stressed the tire, it could've developed a leak, had a manufacturing defect, he ran over some debris on track that compromised the tire, or it simply was a fluke. Considering no one else had a tire problem like this and that there hasn't been any concrete evidence of what the problem was, it's only speculation of why it failed so dramatically.

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