I understand what you are saying but noise has a weird way of traveling and where you hear it may not be the source. I had a noise on my bike this year and I would swear it was coming from the cam chain area (so did the HD tech and everyone that listen to it) and it was driving me crazy, I took the inspection cover off and the cam chain along with the tensioner looked brand new and I have over 45K on the bike so the next thing I was considering was the cam bearings. Anyway I figured that the bike had a extended warranty so I would ride it for awhile and see what happens. The noise was still there and got worst and finally I could not stand it anymore so I decided to do some more checking and guess what!!!! The noise was coming from the EXHAUST BAFFLE at the rear end of the bike, the baffle would vibrate and through time it slotted the set screw opening in the exhaust pipe, so I drilled a new hole in the exhaust pipe a 1/4 turn from the original hole and put the baffle in and tighten the screw & the noise was gone. I know this is a long story but where you hear the noise may not be where the noise comes from.