• Don't think you need both of those locknuts? Maybe add a spacer and just use the one above the hanger. I also find you need to "over tighten" the headset slightly before you nip up the locknut to get the preload just right.

  • This seems to have done the trick. I've tightened the top race a bit more than usual, and it seems to be working, even with both locknuts still in place. Fingers crossed it doesn't just loosen itself again!

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