Don't be embarrassed. It happened to me frequently with an Ultegra headset I had on my Atlantis. I had to snug it up every couple months.
More recently, I experienced a similar thing on a different bike, and checked the usual suspects: brakes, headset, cracks in the frame/fork, etc. Nothing. Over time I noticed that my bar angle was pitching slightly forward. Applying considerable forward rotational force showed that the bar clamp on the stem wasn't as tight as it could be. I greased the bolt(s) and retightened, which fixed it. I later figured out that hard braking was causing the bar to rotate forward, but pulling back on the bar to ease over a particular railroad track was having the opposite affect. My one-way commute had the one railroad to hop over, followed by a fairly hard stop. The effect was self-canceling such that I didn't notice for quite awhile that the bar was slipping, aside from the sense that there was a small singular movement when I hit the brakes hard. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
