Quote Originally Posted by Becky View Post
I would be concerned about why it moved in the first place. I've never seen that happen.
I slipped on some mud coming round a corner, and fell onto a low wall. When I checked my bike the next day the bolt on the headset was sticking up and the handle bars loose . I should have take off the cap and looked but was in a silly rush so I just tightened the bolt. It must have just been the awkward fall ... combined with the above careless maintenance.

I have tapped the starnut back in following the instructions linked to this thread. I will check it, to make sure it dosent move, if it does or gets grumpy in any way I will visit my LbS,

Thanks everyone for the help