Has anyone experienced a problem with their front end stability when riding one handed around 45 mph. Doesn't seem to occur anywhere else, just in that area. If you let go of the bars at that speed the front end radically oscillates back and forth. In turns or on straights it doesn't matter. It doesn't happen at any other speed. Just curious. I'm not in the habit of riding with no hands, but the issue is annoying and the steering head checks out OK.
