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Old 02-15-2017, 08:52 AM   #1
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Michelin sidewall cracking guide

I have been reading everything posted regarding Michelin tire sidewall cracking, but have never seen anything about the guide card from Michelin. Note, the back of the card reads "Michelin Retread Technologies". This seems like something used to determine suitability for truck tire retreading, but certainly applicable to motorhome tires. I have had this card for years, and possibly got it at the Louisville RVIA dealer & manufacturer show.

The card has holes next to each level of cracking condition, and you hold the card up to a tire to view it's condition through the hole and compare to the images.
Attached Files
File Type: pdf Crack card.pdf (58.5 KB, 159 views)
File Type: pdf Back of card.pdf (64.3 KB, 111 views)

George Schweikle Lexington, KY
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Old 02-15-2017, 01:53 PM   #2
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I also have a similar card that I got from Michelin last year at the FMCA Rally. Ask your Michelin dealer, I bet he has them or can get one for anybody who asks.

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Old 02-15-2017, 02:07 PM   #3
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I have never seen the Michelin Card, except for the computer image referenced in the OP. If my motorhome sidewalls looked like some of those rated "Acceptable" I would be questioning using them to haul my home and family around.
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Old 02-15-2017, 02:20 PM   #4
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I picked several of them up years ago at an FMCA rally, around 2004 as I remember. They've been available for many years but people never really bothered to look at them.
Card shows 2/00 as the publication date so it has been around a while.
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Old 02-15-2017, 05:50 PM   #5
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On the Michelin web site they have a connection to clarification on side wall cracking, what it is, what to look for and at what depth (3/32") it becomes an issue. Last May (2016) Michelin replaced all of my 2011 dated tires due to sidewall cracking no questions asked after the local dealer inspected, measured and took pics of the tires. When I called Michelin corp. HQ's initially I gave them not only the 4 digit DOT date but also the 2 4 letter groups right before the DOT dates. As an interesting note the return material authorization code they sent the dealer the last 5 letters of the code was "CHINA".
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