My XT660Z's rubbers are shod at 7500 km's
Yamaha South Africa replaced them, but not as a warranty item, purely a good will gesture, and they made this very clear, no further replacement

I think Yamaha is pathetic here and should come to the party worldwide

I was just thinking out loud, is the power to compound ratio, not to big?

Can there be something like that - power to compound

Otherwise, I'm very happy with the bike