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Changing from threaded headset to threadless

Started by Ken M · · Last activity · 15 posts · 820 views

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Cycling Equipment
Published
9 December 2005
Last activity
15 December 2005
Original author
Ken M
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15
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  1. I would like to change my forks from the stock suspension fork to this
    one at nashbar:
    http://www.nashbar.com/profile.cfm?category=86&subcategory=1182&sku=13283&brand=\
    but this one is a threadless stem system and the one currently on my
    bike is of the threaded design. I have no experience with the threadless
    design. But I'm somewhat familiar with the threaded. I have looked at
    this page at park tools site:
    http://www.parktool.com/repair/readhowto.asp?id=65 and of course they
    want you to purchase all their tools to do the job. And they make it
    look complicated. Is it as complex as they make it out to be? This is
    the bike I want to do the conversion on:
    http://www.raleighusa.com/items.asp?deptid=7&itemid=228&va=0 Can a
    novice do this, or should I have a local bike shop do it for me?

    Ken

    --
    Nothing compares to the simple pleasure of a bike ride. ~John F. Kennedy

  2. Ken,

    There are real bike shop guys here and they'll tell you the real truth.
    What follows is the "barbarian in a garage" truth. I think threadless
    headsets are easier to set up than threaded ones. The rumour I believe
    is that's why they exist, so it will be easier to mass produce the
    bicycles with no skill involved, just a preset torque air wrench.

    * Hex Wrenches, for stem removal

    Well, I guess. Back out the clamp bolt (using a hex wrench, 5 mm?) on
    the stem and whock it with a hammer. Protect the bolt (and stem) with a
    scrap of wood. Send the stem to me.

    Unscrew the headset cap and put it in a zip loc plastic bag. Take off
    the spacer, and unscrew the top fork race, this usually needs a 32 mm
    special wrench or a 12 inch adjustable wrench. It's big. Put them and
    the bearings in the bag. Slide the fork out and put the lower bearings
    in the bag.

    * Race Remover

    I use a steel rod or a tube or a screwdriver. Slide it inside the
    headtube and rest it against the bearing race. Tap one side then tap the
    other side. Repeat. It will eventually fall out. Do the other race.

    There's a race on the fork too. Same deal. Tap one side and then the
    other. It will eventually come off. They're tight. Put the races in the
    bag, seal it and send it to me.

    * Headset Press

    Make sure you know which race is top and which is bottom. Usually the
    one with the more umbrella shape is the bottom one. To keep out rain.
    Rest the lower race on a piece of wood, put a piece of wood on the top
    of the headtube and tap the headtube so that the race goes up into the
    headtube and bottoms. If this is really really tight and it feels like
    it doesn't want to go in: take it to your lbs and let them try their
    headset press.

    * Crown Race Puller
    I think he probably tells you what I told you above.

    * Crown Race Installer
    Put the crown race on the fork, put the dropouts on some wood, and clamp
    and adjustable wrench tight around the fork. Tap down on both sides
    of the wrench alternately and it will go on. This tends to damage the
    paint on the steerer but since it's going inside the headtube anyway ...
    I hope you ordered the right size there's 27.0 and 26.4 mm.

    * Degreaser

    Well, if you're sending me the unused parts ... Seriously, I clean
    everything before I put it back together. Plus I lubricate everything as
    I put it together. Bearings want to be well lubricated with "surgically
    clean" grease.

    * Measuring Caliper
    Useful when you can't get the crown race on. It helps you figure out
    why. I have hand filed down the seat to make a 26.4 fit, but as noted
    above I'm a barbarian.

    * Rags
    I typically use the seat of my pants, but as noted above ...

    Charles

    PS As philosophy I like to get the tools and and do it myself even if it
    ends up being slightly more expensive. And even if I end up having to
    take it to my lbs. If you have the tools and the will the knowledge will
    come.

    Ken M said:

    I would like to change my forks from the stock suspension fork to this
    one at nashbar:
    http://www.nashbar.com/profile.cfm?category=86&subcategory=1182&sku=13283&brand=\
    but this one is a threadless stem system and the one currently on my
    bike is of the threaded design. I have no experience with the threadless
    design. But I'm somewhat familiar with the threaded. I have looked at
    this page at park tools site:
    http://www.parktool.com/repair/readhowto.asp?id=65 and of course they
    want you to purchase all their tools to do the job. And they make it
    look complicated. Is it as complex as they make it out to be? This is
    the bike I want to do the conversion on:
    http://www.raleighusa.com/items.asp?deptid=7&itemid=228&va=0 Can a
    novice do this, or should I have a local bike shop do it for me?

    Ken

  3. In article <[email hidden]>, Charles Smith

    Quoted message said:

    * Headset Press

    Make sure you know which race is top and which is bottom. Usually the
    one with the more umbrella shape is the bottom one. To keep out rain.
    Rest the lower race on a piece of wood, put a piece of wood on the top
    of the headtube and tap the headtube so that the race goes up into the
    headtube and bottoms.

    ....<snip>

    There is a better method to install the headset cups that doesn't
    require the purchase of a dedicated tool. You can construct your home
    homemade press; the parts are easily obtainable at a hardware store for
    under $10.**

    It's important when making your own press that particular attention be
    paid to choice of bushings - don't using bushings that contact the
    actual race portion of the headset cups. My homemade press has been
    used to press in about 1/2 dozen headset cup pairs - both 1" and 1 1/8"
    without complication. Grease the inside of the headtube before
    installing.

    Notwithstanding the above instructions, I would recommend to the
    original poster that he turn the task of swapping out the headsets over
    to the local LBS. Watch and learn the first time, try it for yourself
    the second.

    Quoted message said:

    PS As philosophy I like to get the tools and and do it myself even if
    it
    ends up being slightly more expensive. And even if I end up having to
    take it to my lbs. If you have the tools and the will the knowledge
    will
    come.

    I've found re-ordering the formula can save $ and follicles. That is:
    First the will, then the knowledge, and lastly, the tools.

    Luke

    **
    An online description is available
    here:http://www.mindspring.com/~d.g1/headset.html

  4. In article <[email hidden]>,

    Charles Smith said:

    There are real bike shop guys here and they'll tell you the real truth.
    What follows is the "barbarian in a garage" truth. I think threadless
    headsets are easier to set up than threaded ones. The rumour I believe
    is that's why they exist, so it will be easier to mass produce the
    bicycles with no skill involved, just a preset torque air wrench.

    That may be why they are widely used. Why they exist is
    another story. They were invented for off-the-road
    bicycles because the quill stem design is not strong
    enough for hauling on the bars the way off-the-road
    cyclists do.

    The design also has other advantages over the quill stem
    design. This is one of those odd cases where a new design
    on a bicycle is a true advance.

    --
    Michael Press

  5. Charles Smith said:

    * Headset Press

    Rest the lower race on a piece of wood, put a piece of wood on the top
    of the headtube and tap the headtube so that the race goes up into the
    headtube and bottoms. If this is really really tight and it feels like
    it doesn't want to go in: take it to your lbs and let them try their
    headset press.

    This is good advice for an _all steel_ headset, but if you try to
    install a headset with aluminum or plastic parts this way you're liable
    to damage it.

    Sheldon "A Hammer Is Sometimes The Right Tool" Brown
    Newtonville, Massachusetts
    +-----------------------------------------------+
    | I don't need instructions, I have a hammer. |
    | -- T.W. Wier |
    +-----------------------------------------------+
    Harris Cyclery, West Newton, Massachusetts
    Phone 617-244-9772 FAX 617-244-1041
    http://harriscyclery.com
    Hard-to-find parts shipped Worldwide
    http://captainbike.com http://sheldonbrown.com

  6. Uhh, are you aware that the fork you linked to is for 1-1/8th inch
    headsets?

    If you have a threaded headset now, your bike almost definitely has a
    1-inch headtube.

  7. Dave said:

    Uhh, are you aware that the fork you linked to is for 1-1/8th inch
    headsets?

    If you have a threaded headset now, your bike almost definitely has a
    1-inch headtube.


    Yes I am aware that the fork I linked to is for a 1 & 1/8th inch
    headset. Will this be a problem? I was under the impression that if I
    change the headset that will work with the fork I want to install on the
    bike.

    Ken
    --
    Nothing compares to the simple pleasure of a bike ride. ~John F. Kennedy

  8. Ken said:

    Yes I am aware that the fork I linked to is for a 1 & 1/8th inch
    headset. Will this be a problem? I was under the impression that if I
    change the headset that will work with the fork I want to install on the
    bike.

    Sure, the HS will work with the fork, but not with the bike.

    The head tube on the bike is the determining factor - although a
    smaller headset will often work in bigger headtube with shims, the
    opposite will never work.

    D'ohBoy

  9. D'ohBoy said:
    Ken said:

    Yes I am aware that the fork I linked to is for a 1 & 1/8th inch
    headset. Will this be a problem? I was under the impression that if I
    change the headset that will work with the fork I want to install on the
    bike.

    Sure, the HS will work with the fork, but not with the bike.

    The head tube on the bike is the determining factor - although a
    smaller headset will often work in bigger headtube with shims, the
    opposite will never work.

    D'ohBoy


    Well the outside diameter of the headtube is HUGE, looks like a mtb
    headtube. So I need to measure the inside diameter of the headtube?
    Meaning I have disassemble the headset in the bike now?

    Ken

    --
    Nothing compares to the simple pleasure of a bike ride. ~John F. Kennedy

  10. Ken M said:

    Well the outside diameter of the headtube is HUGE, looks like a mtb
    headtube. So I need to measure the inside diameter of the headtube?
    Meaning I have disassemble the headset in the bike now?

    You've got a quill stem, measure the diameter of that. If it's 22.2 mm,
    it's a 1" headtube and if it's a 25.4 mm stem, it's a 1 1/8" headtube.

    Jasper

  11. Jasper Janssen said:
    Ken M said:

    Well the outside diameter of the headtube is HUGE, looks like a mtb
    headtube. So I need to measure the inside diameter of the headtube?
    Meaning I have disassemble the headset in the bike now?

    You've got a quill stem, measure the diameter of that. If it's 22.2 mm,
    it's a 1" headtube and if it's a 25.4 mm stem, it's a 1 1/8" headtube.

    Jasper


    Hey thanks for the advise, seems like the best I have read so far. But
    part of my problem may lie in the type of headset it is also, it's an
    integrated set. Seems like not too many people have experience with these.

    Ken
    --
    Nothing compares to the simple pleasure of a bike ride. ~John F. Kennedy

  12. "Ken M" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:
    Jasper Janssen said:
    Ken M said:

    Well the outside diameter of the headtube is HUGE, looks like a mtb
    headtube. So I need to measure the inside diameter of the headtube?
    Meaning I have disassemble the headset in the bike now?

    You've got a quill stem, measure the diameter of that. If it's 22.2 mm,
    it's a 1" headtube and if it's a 25.4 mm stem, it's a 1 1/8" headtube.

    Jasper


    Hey thanks for the advise, seems like the best I have read so far. But
    part of my problem may lie in the type of headset it is also, it's an
    integrated set. Seems like not too many people have experience with these.

    Except this latest advice refers to the fork you're wanting to replace...
    The stem fits entirely within the "headtube" of the fork. I find it
    unlikely that the "headtube" of the frame will be so thickwalled as to try
    to support the fork other than at the two sets of headset bearings.

    Headsets are probably the easient bearings to take apart on the bike, you
    could either take them apart to clean them, and peek down through the top
    race once you pull the fork out, see if there's space for another 1/8" of
    fork. Or do this quickly at the bike shop - and maybe take a look at the
    build of a 1.1/8" headset made for your frame, so you can figure out if
    it'll fit.

  13. Ken M said:

    ...it's an integrated set. Seems like not too many people have experience with these.

    You had a threaded *integrated* headset? Troll! J'accuse!!!

    D'ohBoy

  14. Ken M said:

    Hey thanks for the advise, seems like the best I have read so far. But
    part of my problem may lie in the type of headset it is also, it's an
    integrated set. Seems like not too many people have experience with these.

    An integrated headset with threads? Sure dude. Pull the other one.

    Jasper

  15. Jasper Janssen said:

    An integrated headset with threads? Sure dude. Pull the other one.

    Jasper

    Yeah thats what it is, kind of strange. But thats okay I am having the
    LBS do the fork conversion job for me.

    Ken
    --
    When I see an adult on a bicycle, I do not despair for the future of the
    human race. ~H.G. Wells

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