Originally Posted by
Litespud
your vids convince me further that it’s your chain line. Couple this with the fact (that I only just noticed) that you’re using a track chain, which has none of the lateral flexibility of a standard 3/32” road chain. It sounds and looks like your chain is clattering as it enters/leaves the chainring
Thanks Litespud - I'll check it out again.
Last night I took the back wheel off, chain off, and measured to the centre of the frame from the chainring teeth centre; and also did some calcs/measurements to reposition the rear sprocket (axle length divided, end of axle to sprocket teeth centre); and realigned the tensioner by folding it down so the wheel touched the centre of the sprocket teeth. Everything measured to the closest mm.
Other than this, is there any other way to check the chainline that I'm missing?