threaded versus threadless headset.

threaded versus threadless headset.

Post by hoffma » Wed, 05 May 1999 04:00:00


I dont know if this can be answered without aid
of visual depiction, but can somebody tell me in
words, how I know if I have a "threaded" or
"threadless" headset?   (which one is more
common?)

Also, of what importance is the "stack height"
of the headset as listed in the catalogs?
Can't I use any brand of threaded headset with
any brand of threaded fork?

I'm looking to buy a new carbon fiber fork
(Time Equippe Featherlight or Look HSC)
(I dont feel like paying the local bike shops
excessive mark-up) so I am trying to do it
myself...  Any advice is appreciated.

 
 
 

threaded versus threadless headset.

Post by Godofwin » Wed, 05 May 1999 04:00:00

The Guys at the Lbs should be able to tell you.....The most common is the 1
1/8 inch headset. the 1inch is near obsolete. I dont know much abt treadless
but certain forks comes in certain forms either in treaded or treadless and
most do not come in both forms. You have to check out the forks at their
manufacturers website.

Clay
 http://st2.yahoo.com/cgi-bin/clink?goodorient+FCsVvg+wallpapernames.html
 +Get your names In Chinese Calligraphy and have it as a Desktop
wallpaper...

 
 
 

threaded versus threadless headset.

Post by Wes Fuj » Thu, 06 May 1999 04:00:00

: I dont know if this can be answered without aid
: of visual depiction, but can somebody tell me in
: words, how I know if I have a "threaded" or
: "threadless" headset?   (which one is more
: common?)

Okay, I'll try to help, but I'm no expert, especially with all
the new technology around these days...

A threaded headset is one that has threads on the inner diameter
which is designed to***onto the outside of your (threaded) fork
head tube.  It is like a custom nut that has been machined so that
the bearings can ride on something curved and smooth.  This is the
traditional type headset that has been with bikes since their
beginning.

The threadless type is one that works with fork head tubes that
have no threads.  With that system, the bearing races are more like
precision washers and the hold-down and securing is accomplished
by a different handlebar stem and cap, also designed to work with
the threadless fork.  These are common on Mountain Bikes, primarily
because of their torsional strength of the handlebar stem.  The
threadless headset has a large cap to cover the top of the head
tube, whereas the threaded headset has the stem sticking out of the
top.  I believe that 1-1/8" is the most common size.  1" is probably
only used by folks converting a 1" threaded setup to a threadless
setup.  

: Also, of what importance is the "stack height"
: of the headset as listed in the catalogs?

Stack height relates to the height of the headset components if you
stack them up one on top of the other.  That height, plus the height
of your bike's head tube, plus the thickness of your handlebar stem,
plus/minus some other factors will determine the length of your fork's
head tube.  When you are purchasing a new fork for your bike, you need
this information in order to order the correct one.  If the fork is too
short, you won't be able to put everything together safely.  If it is
too long, it won't work correctly.  Many places sell precision washers
that you can install to accommodate some degree of the fork head tube
being too long.

: Can't I use any brand of threaded headset with
: any brand of threaded fork?

There are different thread pitches available, but a few are more
standard than others.  If the threads match, then typically you can
use any brand of threaded headset to any brand of threaded fork as
long as the length matches.  Be aware, however, that the bicycle
steering depends highly on the frame and fork geometries.  Even
though different forks may physically fit, they may not perform
the same (or even close).

Like I said before, I'm no expert.  I'd recommend to work with your
LBS and give them your business if you are not sure what you are
doing.  Corrections to this posting are welcomed, especially if I
am way off base.

Wes Fujii   KC7MFT        |   You are better off not knowing

Boise, Idaho              |                  -Unknown author

This article represents only the opinion[s] of its author, and is
not an official or unofficial position of, or statement by, the
Hewlett-Packard Company.  The text is provided for informational
purposes only.  It is supplied without warranty of any kind.

 
 
 

threaded versus threadless headset.

Post by Vecchio » Fri, 07 May 1999 04:00:00

hoffman<< I'm looking to buy a new carbon fiber fork
(Time Equippe Featherlight or Look HSC)
(I dont feel like paying the local bike shops
excessive mark-up) >>

These forks are sold at the same price in MO as in most reputable shops-plus
the LBS can answer your questions and maybe even install it for free-like ours
would-
My advice is stop expecting MO to be as good as a 'value' as a good LBS-
Peter

 
 
 

threaded versus threadless headset.

Post by Vecchio » Fri, 07 May 1999 04:00:00

claysoo-<< The Guys at the Lbs should be able to tell you.....The most common
is the 1
1/8 inch headset. the 1inch is near obsolete >>

Your MTB slant is showing-the guy is talking about road forks-Time and LOOK
forks-and these are ONLY 1 inch-1 1/8 forks, headtubes, stems don't exist in
the road world-
peter