Bought tires from Summit and got this

[Rockin]

Wanted to go with a different brand tire other than BFG Radial TA so bought tires from Summit.
I spoke with Summit rep before purchase and she told me they rotate out their tires every 90 days - so I bought 2 rear tires in 275/60/15
One tire was manufactured in Nov 22 and the other March 23
Also when looking at where blue dye is on sidewall it looks like sidewall is beginning to crack
So, do these tires have premature sidewall cracking or is this normal?
Summit said they will take tires back
Your thoughts?

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looks like the blue spray is cracking, tires look OK

 

[cosgig]

Sooo, one tire is 2 years old, the other is almost 3? So much for rotating the stock. I would send em back and insist on “new tires”, sometime in the 24 or 25 years.

 

[guy gadbois]

Those appear to be Mickey Thompson S/T tires which are the same as Cooper Cobras. I run them on my ERA Cobra Roadster, black side out. Excellent tires.
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As I understand it, the M/Ts are based on a Goodyear casing and are made here and the Coopers are made in mexico. At least thats how it was.
[way cool Cobra btw!]