I've had my R3T for one year now.
21500 miles.
2 sets of Metzeler 880 Marathons. Even had a car tire on for about 5k miles.
3 oil changes. 3 sets of rear brake pads.
10k and 20k services done. Don't ask how much $$$, it's expensive and I don't like it. But it's the price I pay for such an awesome bike !
Just ride !