So, i have a yyf ONE. I have the SPEC bearing in. But this morning, its all responsivee! o: this is an OUTRAGE!
Take the bearing out and clean it.
also put it in the right section.
also, flowable silicone sometimes helps
Also check/clean the bearing seat. I had something in one of mine and it took me a couple of tries to remember that little tidbit of information.
or you may need a drop of thin lube after you clean the bearing.