Joined: Aug 2009
Posts: 7,711
Likes: 4,085
From: Berkeley, CA
Bikes: 72 Cilo Pacer, 72 Gitane GT, 72 Peugeot PX10, 73 Speedwell Ti,l, 75 Peugeot PR-10L, 80 Colnago Super, 81 Zinn, 85 ALAN Cross, 85 De Rosa Pro, 86 Look 753, 86 Look KG86, 89 Parkpre Team, 90 Parkpre Team MTB, 90 Merlin
How far up does it go? Could it be the wedge is catching on the headset locknut? Maybe tighten the stem bolt a little (but not too tight to move) so the wedge nut stays in line with stem shaft, or try unscrewing the headset locknut?