I noticed today that my 4 month old tire already needs replacing, so I'm looking back at my records to see how long I've gotten on each tire.
My OEM City Grip was replaced at 6324 miles. The center tread was tissue-thin by the time it got replaced. The pandemic started at 3333 miles. This changed my commute from ~10 miles round trip on city streets to ~35 miles to visit family, 1/3 of which is on the freeway.
The City Grip 2 it got replaced with met its untimely end with a screw at 9388 miles. (Thankfully, State Farm covered the towing and the labor, so this wasn't a total waste.)
The next City Grip 2 was just barely to the wear bars when I happened to be at the dealer at 14,687 miles. That's 5300 miles, and includes an 1800 mile tour that had maybe 100 of freeway riding.
Now I'm at 18,700 miles, and this City Grip 2 needs replacing after barely 4000 miles. I've been diligent about checking the pressure. I did have a pillion a couple times, but I doubt it even totaled 200 miles, maybe 5 on the freeway.
I'm shocked that this last tire only lasted 4000 miles. I know they are a wear item, and that it's impossible to prove that I took care of them, but it still has me wondering why it wore out so quickly, and if I should be considering a different tire for next time.