Ok, here`s the real deal: (I own and ride my Fatboy with the solid disc wheels). Wind, especially strong side winds, can be noticeably unnerving. Passing semi trucks also, but not as hairy. Will it scare the crap out of you? Maybe the first time you get blown across your lane while crossing a high bridge. Is it caused by the disc wheels? Yes, and you can feel where the pressure is coming from; the wheels, which is what makes it such an attention getter. We`ve all experienced strong winds on our body and sheet metal (above the center of gravity)and know how to compensate for that, but combating pressure below the center of gravity is an entirely different animal. Will I replace the wheels on my Fatboy because of this? I`m seriously considering it, although I like "the look" of them after having them machine polished...... I wonder if the 9 spoke Road King wheels are a direct fit.... anyone done that? I have a 1995 with 3/4" axles.....