I know Michelin PSS 305/25/20 are typically in high demand and in low supply. I just placed my order for a pair that will ship 10/1 from tirerack.com.

 

Wow - I hope they actually ship. Every time I check their site they have a ship date 2 months off. The last time I looked they were supposed to be in inventory in mid-August. I really don't get it. For 2 plus years they have had issues supplying/stocking these tires. I have 4 on my car, but seriously, if they are not in inventory when I need them again, I will switch to another tire. Just no excuse for this lack of supply.