I followed up a lead, on this and other HD forums, about the sometimes excessive vibes on my 09 build Dyna outside of the smooth range.  Loosened the front mount, found a 3mm gap, installed a 3mm spacer washer, bolted it together and the tingly vibes are now all but gone. Also put some 5mm polyethylene foam under the seat to lift it off the frame and now nothing through the seat. A completely different bike to ride. A simple and nil cost fix.....wish it was all this simple.

yeh mate cheaper than buyin true track ,in fact eveen with true track this gap should be fixed

Might hafta try that trick on the ol softail ... a rubber washer might be the go.

 Would not be wise to ignore something that make sense.

harmonics in bikes can piss even the clever fellas off .i owned a muffler shop for yrs in brissy southside an done heaps bikes cars n trucks if an exhaust is mounted the wrong way itll give the frame a good vibe which can and has made em crack ive seen cars with brackets cracked an itd shock ya when you first see em seen trucks with chassis craked from to ridgid brackets on exhaust on my turbod fxr i used a nolethene engine mount off a landrover early model it was firm enough an still had play when needed it worked for me but every bikes different ..when i built issues2 wifes engine we found 3 cracks in the frame an itd only done 80k an she not a hard rider basically rebuilt whole bike ect respaced the front mounts an sorted the reas hers was 03 dyna nice bike now smooth an got a heap of grunt ...