YST threadless headsets
 

I really would like to use a quill stem on my newly purchased bike,
unfortunately it uses a threadless headset system. Since I am just
starting to ride again after 10 years, I would like to be able to experiment
some with my handlebar height.

Looking through past messages, I found the following:

There's a company that sells 1" threadless headsets (G-Force) that
attach entirely externally, allowing you to keep your threadless fork and
install a conventional stem.

and this off Sheldon's site:

The YST "GeForce" headset has a collar which slips over the steerer, and is
clamped to it with a binder bolt near the top of the collar. The outside of
this collar is threaded, and the upper bearing race screws onto these
threads. The upper race assembly is fitted with a binder bolt that clamps it
tight onto these threads when the desired adjustment has been attained.

Looking at the current YST site:

http://www.yst-corp.com.tw/bycicle2.htm

yields little information for me, unfortunately. Granted, I am using a
1-1/8 headset and the post referenced was a couple years old.

It seems as though I should be able to find some sort of locking collar to
keep my current headset compressed together, knock out the star fangled nut,
and assuming the steerer tube is a consistant thickness and not butted,
simply slide a 25.4 stem into the steerer.

I am currently using a threadless riser, and while it does let me adjust the
height, It seems like a real kludge. I miss my old stem :(

Any advice would be appreciated


--ian

YST threadless headsets
 

On Tue, 24 Feb 2004 01:37:20 GMT, "Ian Szekeres"
may have said:

It seems as though I should be able to find some sort of locking collar to
keep my current headset compressed together, knock out the star fangled nut,
and assuming the steerer tube is a consistant thickness and not butted,
simply slide a 25.4 stem into the steerer.

I am currently using a threadless riser, and while it does let me adjust the
height, It seems like a real kludge. I miss my old stem :(

Any advice would be appreciated

A really cheap threadless stem could be used as a clamp, with no bar
installed. Or, if you're adventurous, you might be able to use a
31.8mm seat clamp with the internal ridge reamed out. I wouldn't
recommend that dodge personally, since it leaves you with just one
clamp bolt, but it might work. To get the preload set properly, if
the starfangled nut is already gone, take a piece of 1/4" or 6mm
all-thread that's long enough to go through the steerer and bend into
a hook at the bottom, and use that with a wingnut to snug down the cap
at the top while you tighten the tube clamp.

--
My email address is antispammed; pull WEEDS if replying via e-mail.
Typoes are not a bug, they're a feature.
Words processed in a facility that contains nuts.

YST threadless headsets
 

While not cheap, Time makes an adjustable spacer called the microset. I sell
both off list as does your LBS (G-force is out of production but Microset is
current).
Tom

--
Bruni Bicycles
"Where art meets science"
brunibicycles.com
410.426.3420
Werehatrack wrote in message
...
On Tue, 24 Feb 2004 01:37:20 GMT, "Ian Szekeres"
may have said:

It seems as though I should be able to find some sort of locking collar
to
keep my current headset compressed together, knock out the star fangled
nut,
and assuming the steerer tube is a consistant thickness and not butted,
simply slide a 25.4 stem into the steerer.

I am currently using a threadless riser, and while it does let me adjust
the
height, It seems like a real kludge. I miss my old stem :(

Any advice would be appreciated

A really cheap threadless stem could be used as a clamp, with no bar
installed. Or, if you're adventurous, you might be able to use a
31.8mm seat clamp with the internal ridge reamed out. I wouldn't
recommend that dodge personally, since it leaves you with just one
clamp bolt, but it might work. To get the preload set properly, if
the starfangled nut is already gone, take a piece of 1/4" or 6mm
all-thread that's long enough to go through the steerer and bend into
a hook at the bottom, and use that with a wingnut to snug down the cap
at the top while you tighten the tube clamp.

--
My email address is antispammed; pull WEEDS if replying via e-mail.
Typoes are not a bug, they're a feature.
Words processed in a facility that contains nuts.

YST threadless headsets
 

On Tue, 24 Feb 2004 01:37:20 GMT, "Ian Szekeres"
may have said:

It seems as though I should be able to find some sort of locking collar
to
keep my current headset compressed together, knock out the star fangled
nut,
and assuming the steerer tube is a consistant thickness and not butted,
simply slide a 25.4 stem into the steerer.

Airnimal folding bikes use such a setup: www.airnimal.com


--
---
Marten

YST threadless headsets
 

Ian Szekeres wrote:

I really would like to use a quill stem on my newly purchased bike,
unfortunately it uses a threadless headset system.
-snip-
There's a company that sells 1" threadless headsets (G-Force) that
attach entirely externally, allowing you to keep your threadless fork and
install a conventional stem.
and this off Sheldon's site:
The YST "GeForce" headset has a collar which slips over the steerer, and is
clamped to it with a binder bolt near the top of the collar. The outside of
this collar is threaded, and the upper bearing race screws onto these
threads. The upper race assembly is fitted with a binder bolt that clamps it
tight onto these threads when the desired adjustment has been attained.
-snip-

Yes, that's what you want. It's the discontinued YST
"G-Force". They certainly came in handy, though:
http://www.yellowjersey.org/photosfr...st/FISHBAR.JPG

You might fabricate something to do that.
--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971

YST threadless headsets
 

Ian Szekeres wrote:

I really would like to use a quill stem on my newly purchased bike,
unfortunately it uses a threadless headset system.
-snip-
There's a company that sells 1" threadless headsets (G-Force) that
attach entirely externally, allowing you to keep your threadless fork and
install a conventional stem.
and this off Sheldon's site:
The YST "GeForce" headset has a collar which slips over the steerer, and is
clamped to it with a binder bolt near the top of the collar. The outside of
this collar is threaded, and the upper bearing race screws onto these
threads. The upper race assembly is fitted with a binder bolt that clamps it
tight onto these threads when the desired adjustment has been attained.
-snip-

Yes, that's what you want. It's the discontinued YST
"G-Force". They certainly came in handy, though:
http://www.yellowjersey.org/photosfr...st/FISHBAR.JPG

You might fabricate something to do that.
--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971