Join Date: Oct 2004
Location: DC / Maryland suburbs
Bikes: Homebuilt tourer/commuter, modified-beyond-recognition 1990 Trek 1100, reasonably stock 2002-ish Gary Fisher Hoo Koo E Koo
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Originally Posted by FarHorizon
For a Cane Creek style headset and a metal steerer tube, what should my preload torque be on that star?
You tighten up the star nut until you can turn the headset with neither binding nor play (no tightness and no wobbliness either). There's no exact formula, you're adjusting a bearing and you have to do it by feel. It's a bit tricky to learn, but at least threadless headsets are easier than threaded headsets.
What I would do is tighten up the star nut until the fork can't turn perfectly freely, then loosen it slightly, and check for play in he bearings. Continue making small adjustments until it's just right.
By the way, the star nut can actually be removed from a metal steerer once the stem is clamped in place. Racers do this to save a few grams...
Last edited by moxfyre; 05-28-05 at 05:58 PM.