Joined: Sep 2007
Posts: 502
Likes: 145
From: seoul korea
Bikes: 3Rensho SuperRecord Export, Bridgestones MB1 RB1 XO2, Colnago Super, Medici GranTurismo, Schwinn Paramount, Olmo Competition, Raleigh Portage, Miyata 1000, Stumpjumper, Lotus Competition, Nishiki Maxima, Panasonic DX6000, Zeus Criterium
it could be the wrong sized stem was forced into headtube or over tightening the stem wedge / cone or front end collision damage.