On Fri, 30 Jun 2006 17:47:03 +1000, meb
<
[email protected]> wrote:
>
>Can a 1 inch steerer tube have a 1 1/8 steerer sleeved over it to fit a
>1 1/8 headtube/headset?
It's not practical, probably not safe, and not the best solution in
any event. First, the OD of the steerer is only precisely controlled
at the crown race seat, the length of which is variable; the sleeve
would have to be custom-machined to the existing steerer's dimensions,
and then either heated and slipped in place or pressed on to the
existing tube, after which it would need to be welded or
silver-soldered in position. This isn't a trivial task from a cost
standpoint. Second, the sleeve would stiffen the tube with the effect
of concentrating the bending forces at the crown joint, possibly
overstressing it.
There are other problems as well.
Physically, it could be done. So could a lot of other things that
should be avoided.
A proper-size fork is a better solution, and an adapter to allow
installation of a 1" steerer in a 1 1/8" headset would be a better
choice than trying to sleeve the tube. I believe that Wheels
Manufacturing made such an adapter set, but I could be wrong.
--
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