Can't keep chain from skipping, need solution
I converted a Trek hardtail to SS awhile back. I put on a Surly Singleator with a new 9 speed chain, Surly stainless 34T ring up front, and a Gussett double 16T in the rear. The Singleator was setup to push down away from the chainstay to keep tension, and it has worked perfectly for the hundred or so miles I have put on it. Now today I wanted more gear so I replaced the 16T with a 14T. I figured the chain would be longer but upon inspection, it doesn't really seem I can take a link out without making it way to tight, tight enough to bind it slightly, but when I keep the chain at the original length with the tensioner in place it will skip under load. I am fairly sure the chainline is correct or close enough as it never had a problem with the bigger cog and it worked flawlessly, and I cannot use the singleator as a push up to get more wrap because the chain is to loose to take up the tension even with the tensioner to the chain stay. What are my options, or what am I missing?