Weird vibration around 8k+ rpm

[Ayzen]

Hi guys!
My rc [125, 2017, 2k miles odo], is doing something odd, around 7-8k+ rpm i can feel weird vibrations, its getting worst over time.
I did velve adjustment, 3 velves ware off, nothing big but still, chain tensioner looks like its doing it's job, everything is seal, fresh oil, factory exhaust, torque on bolts ok, every filter was done 800miles ago [2k miles now in total], dunno whats going on, any idea what else i can check?

please advice!

thanks!

 

[Ayzen]

up up up up

 

[grinder96]

I heard (not felt) a vibration on my 2017 RC390. It ended up being the right fairing panel broke a plastic locating pin and would make a terrible noise at anything above idle. I would keep looking for anything loos. Sprokets, chain tension, check tires etc