The chain itself does not feel too tight and it will occasionally fall off if I pedal while hitting a big bump. What I am worried about is the effects on the deralliuer when its in that position. Is it a problem? The setup is 9x1. I only use one gear (second largest cog) which is the position that is shown in the picture. Chainline is fine as I moved the big chainring to where the small chainring used to be in the front.