Re: Off center bicycle motor sprockets.
Mine were both off enough that when the chain was at it's tightest, I'd have 3/4" of play, then at it's loosest, 1".
They both were noisy but I couldn't tell as far as motorized bike performance....just noisy!
These next few builds I will see what I can do (if needed) to center them better.
Also, I will be hard at work on a simple tensioner (spring loaded).