Yes, the tires are stock Kenda, that came with the bike. I have been on gravel, wet muddy gravel, wet leaves on hills in the forest (film coming) and they seem to be pretty good, although I don't have any experience to compare to other tires.
I guess the test would be stopping fast or swerving around an obstacle on wet pavement, etc. which I haven't had to do.
Stig, thanks for comment, but not sure if you mean the audio wasn't loud enough for you or I'm just not making sense