[QUOTE=FBinNY;17510513]Yes, a 9s on 8s, or a 10s on 9s are OK since the difference is small. But the OP has a 6s system, and a 9s chain would be fully 1mm or so narrower than original, and that's too much (see chart in post No.8)[/QUOTE

I should have referred to post #3 , where it is recommended to use a chain designed for your cassette. I only used my experience as an example. When I put the chain on I was unsure how it would perform and am happy with the results.