Michelin PSC2 Shelf Life

[MikeR397]

What do you think the shelf life is for a set of new Michelin Pilot Sport Cup 2's? Seller on eBay (no, not me) is selling new sets for $500 a pair (front or rear), but the tires have a production date of June 2015, so almost 4 years old. Considering these are high performance tires would you trust them for the street or track?

https://www.ebay.com/itm/2-New-315-30-19-Michelin-Pilot-Sport-Cup-2-Race-Tires/382824658473?_trkparms=aid=111001&algo=REC.SEED&ao=1&asc=20160811114145&meid=58b1ccc7fe654e2bb9a20471aaa1da1f&pid=100667&rk=5&rkt=8&sd=201561870059&itm=382824658473&_trksid=p2045573.c100667.m2042

I bought like 16 of these 2015 year ps2 and have posted about them. I’ve worn out 4 fronts and 2 rears in the last 12 months and notice zero difference between them and the tires that came with my R (Im in advanced group, usually fastest car or close to it depending on competition).

in my experience even with -3 degrees negative camber I only get 4-5 days on my front tires with rotating and 8+ days on the rears. I have plenty rears left and would jump on this price if available ij 305/30/19 fronts cup 2. Have one more spare set and otherwise going to try the 102y spec Porsche tires at 305/30/19 for the thicker tread and stiffer sidewall next, despite price premium.

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