David E. Belcher said:Aha - I see someone else is posting questions about threadless headset
fitting. I'm also unsure about this, but my problem is slightly
different; I've just bought a 2nd-hand frame with the headset cups and
crown race already fitted (Cane Creek headset/Sintema Muddy 1" forks),
but am not 100% sure about the next steps, as I've never had a bike
with an Aheadset before. Is getting the right amount of play in the
headset (smooth, not too loose, not too tight) without it gradually
working loose as simple as fitting stem and spacers and then
tightening the top cap to suit (to 'close up' the assembly without the
bearings binding),
Yes, same as threaded headsets except preload on the bearings is obtained
by the stem simply pressing down on the bearings (via any spacers) instead
of the job being done by a threaded race.
Loosen steerer clamp bolts on side of stem, tighten top bolt by a small
amount, tighten steerer bolts, test for play by rocking bike back and
forth with front brake on (if non suspension fork), repeat as necessary.
This page is good for more info:
URL:www.parktool.com/repair_help/howfix_headthreadless.shtml
Quoted message said:or is there more to it than this? Also, for the top
cap, the 'expanding plug' types sold for carbon fork steerers seem to
be a better design than the earlier 'star' types; are the former also
OK for steel steerers?
Yes, and alloy, as long as the steerer internal diameter is appropriate.
They do weigh a little more than a star nut arrangement, though, and some
don't work as well, apparently. (My Woodman one works fine as long as
there is a spacer underneath it).
~PB