I dont take mine to high RPMs, my deluxe is for *rollin* , but at high speeds (75-80) i do notice it. Handlebars, floorboards, seat.....

 

I have an 08 Deluxe and one of my riding buds has an 07 Heritage. We both have a little over 7000 miles on them. Since new, there is a spot from about 64 - 70 mph in 6th where we notice more vibration than at speeds above and below. I feel the increased vibration in the footboards, not the handlebars. Vibrations go to normal once at above 70 or below about 64. I believe it is a fairly common occurence with the b motors. We notice no increase in vibration when running them up through the gears, but I'm not holding it at high rpms for any significant time in a lower gear. When it's time to shift, I shift.

 

ill keep an eye on mine

 

Please let us know what you find out because I'm thinking I may have to take mine in for this also.