Originally Posted by
cycledog1
just so there's no question about WHAT the slippage is that I'm talking about.
the "steerer" tube is tightened as the upper race/headset and is tight -------- doesn't move. the cap then tightens in from the top, no issue with slippage with the headtube, in the alum finish I might add, not powd ct'd in a color. only the stem, when slipped over top and tightened at the desired ht does the STEM slip/move side to side hoiz around if pulled enough after tightening and the bar intact. the issue I see is the texture of the steerer tube shouldn't allow the stem to slip/rotate around the st tube when tightened. most steerer tubes on forks have dull/matte finishes in the alum or CF. once they are tight enough, rotation ONLY happens with a LOT of pressure, such as an impact.
I'm thinking the best approach is a locktight or light spray glue to the surface. otherwise, it may be tight enough with normal riding ---------- I'm more concerned about the torque when turning with vibration and higher speeds.
anyone else had the issue I have with the "rotating" stem once tight with the bar installed and putting pressure on it?
I am glad you clarified the issue as that is not what I thought you were describing. Did you try the assembly paste between your stem and the innicycle steerer tube to see if that helps? Where I initially described adding it wouldn't make any difference but I thought you had slippage somewhere else.
Which stem are you using on your innicycle and what are you torquing the bolts to? Is there still a gap at the split in the stem clamp or has it bottomed out? If not already bottomed, have you tried going a 'precise smidge tighter' as
BMC_Kid describes?