[rjd_F30]

So I picked up a new set of wheels and tires yesterday. They came with Michelin Pilot Super Sport tires already fitted with about 2,000 miles already on them. They had been in storage for roughly 1.5-2 years, mostly in a heated garage. So, I got them fitted, and have been driving around (albeit for only one day) in 30°-40° weather, absolutely no snow, and noticed these... blemishes? I marked the parts I'm concerned about in the attached pictures. These are by far the worst spots out of all 4 tires, all the others are pretty much flawless. So, those of you who may be able to help, are these marks something I should be worried about?

Also, those who closely follow this section of the forum may have noticed that I have posted quite a bit of new threads asking questions about wheels and tires, tire cracking etc., I am still very much a student, not yet an expert on the topic, so please bear with me. I also attached a pic of the new setup because, well, why not. Thank you!!

[bimmer456]

These are summer tires so should be used primarily in warmer weather preferably above 40 degrees F. You should also check the date of manufacture to see when they were made. If they are more than 7 years old they should be replaced even if they've never been used.

[jeffc83]

Tread looks decent based on the pics but rubber rot is starting to occur. The recommendation above is also a good one but when you see cracking like that, it's a sign to start looking. Buddy of mine ignored it and had a severe blowout on the highway. (his cracking was much worse though)

[rjd_F30]

2 of the four were manufactured in late 2014, one mid 2013, and the other mid 2015. all have been used the same amount though. I understand they are summer tires and I don't plan to do much more driving in the cold. so, are these still safe to drive on until say, the end of the summer? can I get another 5k miles out of them safely?

[wdeerfield]

Originally Posted by rjdnyy224

2 of the four were manufactured in late 2014, one mid 2013, and the other mid 2015. all have been used the same amount though. I understand they are summer tires and I don't plan to do much more driving in the cold. so, are these still safe to drive on until say, the end of the summer? can I get another 5k miles out of them safely?

is trying to save $800 worth the risk? Those questions can only be answered by you. depends on road conditions, what you may encounter, your driving style, etc..

[rjd_F30]

Originally Posted by wdeerfield

is trying to save $800 worth the risk? Those questions can only be answered by you. depends on road conditions, what you may encounter, your driving style, etc..

fair answer. I'll think about, but I guess I'll have to replace them sooner or later. better safe than sorry I suppose.

[Orion4]

Is this the only tire exhibiting the rubber rot? And is this the 2013 tire? If it one of the newer tires, you may be able to get some relief/partial credit from Michelin since you have mininal tread wear. It's worth asking the question.

[VMRWheels]

Originally Posted by Orion4

Is this the only tire exhibiting the rubber rot? And is this the 2013 tire? If it one of the newer tires, you may be able to get some relief/partial credit from Michelin since you have mininal tread wear. It's worth asking the question.

This. I had a customer with a similar issue who received a credit towards his next set of Michelin tires. Definitely worth looking into.

[rjd_F30]

Originally Posted by Orion4

Is this the only tire exhibiting the rubber rot? And is this the 2013 tire? If it one of the newer tires, you may be able to get some relief/partial credit from Michelin since you have mininal tread wear. It's worth asking the question.

this is one of the 2014 tires. it is not the only tire, as 2 of the others have some, but not as bad, not that this one is terrible anyway. can I still get credit towards a next set even if I bought these second hand and they have been in storage for the past 2 years?

[Orion4]

Don't have a clue, but it still worth pursuing with Michelin. The worst is they say "No can do!"

[rjd_F30]

so I went to a tire shop today just to have them looked at for piece of mind. They said tread was great, which I already knew (9/32 front 10/32 rear) and that the cracking was as shallow as could be and was purely cosmetic. I was obviously very happy to hear this and get the piece of mind that I wanted. however, even though they told me not to worry about it, I'm going to keep a close eye on it and coat them in 303 protectant just to be safe.