The PC89r is a 9spd chain so there should be no problems.
By "chain rub when in 8/9 gear" do you mean it's rubbing on the inner edge of the chainring? Some rubbing is to be expected as it's not the perfect chain line.
@O'Shane started
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The PC89r is a 9spd chain so there should be no problems.
By "chain rub when in 8/9 gear" do you mean it's rubbing on the inner edge of the chainring? Some rubbing is to be expected as it's not the perfect chain line.