Me too.If the ring is in good condition, I always reuse.
If the ring feels tough, brittle, or has a crack: I replace.
i used mine untill they blew out. i noticed that they were slightly warped (longer) when i tryed to install them, next ride they blew ran them for little over a season.order them from mcmaster carr, you get 100 of them for the same price as a 'kit'
but I reuse them if they are pliable, not cut or distorted, as stated above.
i
PS: is their a difference between 81mm or 84mm heads... the kits come in one size... so assuming no.
I have bags of then from McMaster so I always replace them but I have not had my head off for three years.
Mark44
I just took mine off to send the cylinder and crank to team scream other than that yep its been 3 years of abuse.
Mark44