Not even sure how to describe this. If I sit on my KLR, not moving, and wiggle the handle bars, then let go the movement keeps going for a second or two. Like an oscillation. I grew up on bikes, have owned many, can't say I've ever noticed this before on any of my other machines. If I look at my front tire while doing this, I can see the front tire flexing at the contact point. Could it be as simple as that? Why have I never noticed before on any other bike? I'm running TKC80s inflated to near 40 so not like they are soft. Can't find any flex in either rim (ie loose spokes), or frame flex, or fork flex. Anyone else's KLR do this? Mine's a 2012.