I got a 2010 Thunderbird with the 1700 with an issue I haven't been able to figure out. It has an oscillating noise, or like a "wub wub wub" sound when moving, it does it at all speeds but less noticeable at higher speeds since it occurs at a higher frequency then and there is alot of other noise to drown it out. The sound and frequency is entirely based on road speed, so braking, throttle, clutch, load, etc has no effect on it. I originally could've swore it was coming from the back so I thought it was a wheel bearing, but after replacing them it still occurs. I've noticed now, after getting it back out, that I can actually feel it (as a slight vibration when the sound occurs) in the foot pegs as it oscillates. My buddies and I had it on jacks last fall and ran the bike at about 30mph to try to locate the sound, and it seems to be coming from the center of the bike, around the front pulley area (this also rules out anything with the front wheel since it wasn't moving). Any thoughts on what the issue might be? Here's a video of the sound, nevermind the flailing camera. It also seems to be more prominent on the right side (but not by much), but I obviously needed that hand for the throttle.