anyone else having this issue? some pavement gap in the road (longitudal, in the direction you are traveling, like a gap between lanes on a highway) aligns with the tire tread in a very bad way; it yanks the wheel and you get a sudden direction change (which the driver will naturally compensate for). if you are at the right approaching angle - happens on lane merges all the time on this one road I take every day - its quite a startling thing. I've had this in the past with very 'line block' style tires. I've fixed it by changing tire patterns so that the geometry is more like a sweep or swirl than rows of blocks with straight gaps between them. I'm wondering if this is a tire issue or if I might have an alignment problem? it also happens when you drive over the embedded reflectors in the road; when the tire hits it at the 'right' angle this has the same effect and the car wants to change directly slightly, but noticeably. likely the edge of the tire is hitting those reflectors and that's causing the 'push' toward one direction, for a short duration.