- Movement in heatset
loosen stem bolts – increase pre-load on the bearings by tightening the topcap bolt – refasten stem and loosen slightly the topcap bolt again
tightening the topcap while the stem is tight should have no effect and once the stem is on tightly, you can release the pressure on the star nut slightly
if there’s still a problem then you could look to either the suspension (if the bushings are worn) or check the bearings in the headset
others may have a more educated opinion on what to do next but those would be my first stepsPosted 4 years agondthorntonMember
Check the headset is tight enough – if not tighten.
Or – sometimes the steerer can be too long to pull everything together and tighten properly – instead it sits flush with the top of the stem (there needs to be a 2mm ish gap) – also sometimes the star nut is not far enough down the tube and hits the top cap before pulling tight causing the same issue.
Adding another spacer above the stem will tighten everything properly and show if either of the above are the problem – If so then cut steerer or push star nut further down to fix.
If not your bearings need replacing.Posted 4 years ago
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