I have not used them but intuitively, for me, it would seem they should work. I notice that I get a bit more vibration through my bike if I use my lined aluminum h2o bottles in place of plastic bottles or do not have my saddle bag on which I believe to absorb some unwanted vibrations. I also use dampening techniques on my home stereo which "eats" unwanted sound waves. Weather this applies to road vibrations I don't know.