Originally Posted by
HillRider
+1 If you don't have a gap between the top of the stem or top spacer and the top of the steerer, you can tighten the bolt all you want but the steerer can't move upward to remove the play.
But if I've always had the same number of spacers and never had a problem before? IIRC there is a small gap between the stem and steerer, but I'll double check just in case.