Thanks for all the quick responses.
But boy, did I ever screw up in my subject line.
I have a 5x2 drivetrain (5 sprockets on the cassette, 2 chainrings on the crankset).
I was trying to make light of my 10 speed currently only having nine speeds available, the gearing defined by the large change ring and the largest sprocket being the one speed/gear ratio I can't reach because it runs of of chain.
Didn't think that a "nine speed" could also be a 9 x 1 so my bad for that confusion.