Well, this is not a new topic but nothing new on it since 2007 AND all the input was from higher mileage scoots. My 2020 GTS 300 HPE has just under 1800 miles and I should hope the problem is not rollers already.
Oh, the problem....harmonic vibration at 60 plus mph. Not horrible, just there. Checked air pressure, head bearings, etc. It is pretty subtle but I just started noticing it now.
Yes, I read all the suggestions, just thought there might be something new with the HPE since 2007.