Originally Posted by
burnthesheep
Butyl? Butyl without a problem should be within a pound or two for a long time. Like you could set it at 85psi and be at 82psi a couple weeks later.
I sort of agree. If I leave my bike for a week or two the one with the conti tube will be down in the low 80's. And it seems to stay there except for when in very long disuse.
However 85 psi isn't right for all of us. I'm sometimes 125 on the rear. rarely less than 110 on the rear. Depends on the roads.
I lose about 1/2 psi per day on the conti till it hits the low 80's and maybe 1/2 psi every other day on the bells.