they are still chattering
no performance issues
they sound loose at idle?

ok Ive went from a 26" to 27" tire and clocked my clutch to C1
I was informed that I should go with a 24 gram sliders.
the part#I got from Dr Pulley the sliders are hexagonal and mine I round?
They are telling me that they're interchangeable??

nothing listed for a 2021

2021 800ex
anyone had any luck finding aftermarket axles

For most..or average riding C1 will be fine. I have 27s as well and am on B2 with 22 gram sliders for the altitude but.. my playing days (meaning heavy hill climbing and deep mud-running) are over now that the wife and dog come with me.. so the next time I'm in there she's going back to C1.

I was pleased with factory settings for our riding style
I'd like to stay close to that

21 zforce 800   upgraded to 27" tires.
any suggestions on clutch setting
factory B1
thinking of C1??

2021 zforce 800   any recommendations on exhaust upgrade?