A recent post by @bpe got me to thinking about my tires. March of 2021 I mounted Michelin Pilot Street Radials in the factory sizes on my 2009. The pictures below were taken today in which time they have accumulated 8765 miles. It seems to me that I should have no problem getting 10 out of them, which I think is about right. These were all sport/touring miles, no track days or anything like that. Just for group FYI.