I got 20K out of my first front tire on my '17. Got 16k out of the second one. Dealer tried to get me to change out all three tires while in for the 45k service. I did change the rear tires, at home, to Goodyear Comfortreds. Saved over $200 doing it myself. The front tire still has quite a bit of tread. I am going to ride it out to 15k and probably go with a different tire.Had my 2019 in the dealer yesterday, have 4/32 tread depth remaining on the front tire with 9K on it. Dealer suggests to replace at 3/32 tread depth. Do the Tri Glides eat tires? I'm not wanting to use the factory tire again with that miserable mileage.