Thanks for welcome words.
Unfortunately my warranty is over few days ago.
Just had a talk with the dealer. He assumed that maybe I was pushing not firm enough. It can be, as I was on track, hard on brakes. I could make mistake. The other thing to change is oil. Now it is some Shell, as it was changed at dealer. He proposed to use Motul 300V. I always run Motul 7200 for my GSX-R and had no problems.