A quill seatpost!

Quoted message said:

Well, I see the darndedest thing on an early 90's schwinn road frame
(which Usenet tells me was made by Klein): a quill seatpost. No
external binder, so it looks very sleek, but seatpost has an internal
wedge very much like, if not exactly like, a quill stem. Other than the
novelty value, anything important to know about such a thing?
Brian Plaugher
Guerneville, CA

I have one of those seatpost on my ~1990 Moser! Looks way cool with clean
lines. When I got the bike a few months ago, I needed to lower the seat
about 1/2". I tried every-which-way from Sunday and couldn't get the
seatpost to move. It had been in the (then) position since the early 90s.

Finally, thanks to suggestion on a NG/forum, I wrapped the seat tube with
towels and poured hot water on it. I then chilled the seat post with liquid
Nitrogen and it finally released.

Another suggestion that sounded plausible was the liberal use of Ammonia
poured in from the bottom bracket. I felt the risk to the paint was too
great though.

So my important piece of wisdom is to not let the seatpost get stuck! Since
there is no practical way of "prying" the seat tube open a tiny bit, you are
only left with brute force type methods.

--
Skuke
Reverse the domain name to send email

I believe these were made by Suntour and are no longer available. If someone
knows of a source for one, please let me know. I have a friend who needs to
replace one. Also the Schwinn mention was made in Mississippi not by Klein but
under his patents.

This may be a Suntour seatpost.

I have an Aluminum frame, which I 'think' is a Schwinn and it has one.
It seems to work really well and, as you have noticed looks really
cool.

Be sure that you keep some tension on the nut/bolt mechanism. It works
like a quick release skewer.

Lewis.

*******************************

I have seen one on E-bay recently.

They are not difficult to make. The one that came with my frame was
too short for me, so I took a longer post and modified it.

All you have to do is too is to lenghten the pull rod and drill the
cross hole for the tensioning bolt.
Lewis.

****************************

I've got two of these, an aluminum one and a carbon one. Both from a
Moser TK-2. I'll take a look to see if they have any manufacturer
information on them. Because the tightening bolt is on top of the post,
you need a special hook-shaped allen tool for on-the-bike adjustments.
Because you can't see the bolt head it can be a little bit tricky, esp.
because dirt thrown up from the wheel tends to settle right in there.
If you don't have the special key, you can remove the seat and use a
standard allen key.

EdDyMeRkX said:

I believe these were made by Suntour and are no longer available. If

someone

Quoted message said:

knows of a source for one, please let me know. I have a friend who

needs to

Quoted message said:

replace one. Also the Schwinn mention was made in Mississippi not by

Klein but

Quoted message said:

under his patents.

email hidden said:

Well, I see the darndedest thing on an early 90's schwinn road frame
(which Usenet tells me was made by Klein): a quill seatpost. No
external binder, so it looks very sleek, but seatpost has an internal
wedge very much like, if not exactly like, a quill stem. Other than the
novelty value, anything important to know about such a thing?

They were common on Japanese-made road and touring bikes of the '80s
as well. I have one on an old Bridgestone.

--
Typoes are a feature, not a bug.
Some gardening required to reply via email.
Words processed in a facility that contains nuts.

American Classic used to have them. Give 'ol Billy a call in Florida.
Mississippi is correct for place of birth, Schwinn had a quite large
manufacturing facility there before it all went to asia.
--Jim