Joined: Jul 2015
Posts: 7,413
Likes: 3,250
From: NW Oregon
Bikes: 1982 Trek 930R Custom, '91 Diamondback Ascent w/ XT, XTR updates, Fuji Team Pro CF road flyer, Specialized Sirrus Gravel Convert, '09 Comencal Meta 5.5 XC, '02 Marin MBX500, '84 Gitane Criterium bike
measure the steerer tube, please... is it 1 1/8", or 1"?
both sizes are available in an unthreaded style.... looks like either the tube is 1" diameter, or the clamp is 1 1/4" I.D.
is the fork firmly seated at the top bearing?
whatever the case, over-tightening the clamp screws will only possibly damage the stem.... which would be dangerous, eh?