Am I being paranoid?

[packie]

I can hear this over my pipe with the visor open, im pretty confident its the chain on mine as in engine off coasting it sounds very much chain like, I need to check the tension etc which I havent done yet.

Ya...after adjusting and measuring the chain slack, I make a habit of checking it again after tightening up Axel. Someimes the slack can go out again with less slack.

Also, have you torqued the axle nut? I torque every bolt. If your nut is not torque up correctly with enuff pressure, the wheel and sprocket could possibly be not over fully to the drive side. Even an extra twist or two could maybe leave you out by a few milimetres which would make the chain running at a slight angle between the both sprockets and not running or seating properly around the sprockets.