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Basic Threaded Headset Question(6 posts)

Basic Threaded Headset Questioncdje
Jul 10, 2001 1:02 PM
After giving my bike and body time to adjust to the aero position, my particular setup, etc., I've come to the conclusion that a slight increase in stem height would be more comfortable. For a threaded stem, what's involved in raising the stem. Is it just a matter of loosening the first hex nut and raising the stem, or is there another nut below that needs to be loosened? Any need to buy a headset wrench? If not, given the minimal expense is it a good tool to add to the collection? Thanks in advance.
re: Basic Threaded Headset QuestionSpiderman
Jul 10, 2001 1:22 PM
to raise the stem you shouldn't have to touch the headset. Just loosen the stem bolt, usually, when you are riding the bike and you look down at the stem, it is staring straight back up at you unless it is covered by a plastice cap or something. It is at the corner where the stem goes out, and down, sort of hard to describe. Just loosen that nut raise it to the proper height and then tighten it down, really hard. It is sort of hard to describe but a very simple procedure. good luck with it, let us know how it goes.
Thanks! (nm)Horace Greeley
Jul 10, 2001 2:25 PM
re: Basic Threaded Headset Questiontwikkie
Jul 10, 2001 1:52 PM
the one who posted the above is giving you poor advice! You do not need to buy a headset wrench...as he says, to raise the stem you don not need to touch the headset. All you have to do is loosen the quill a couple of turns and...presto! Do not loosen the bolt all the way, as you can drop the expander bolt into the fork. If the stem will not come loose, then cover the stem with a wood block, and give it a good smack with a hammer. When tightening the stem, you do not want to tighten the bolt "really hard" as the previous reply states. You can damage the steerer tube of your fork. Tighten the bolt enough so that the stem will not move inside the steerer tube when a moderate amount of torque is applied. You don't want it to move while cranking up a hill and the like, but you don't want to damage the fork either.
Don't forget...MrCelloBoy
Jul 10, 2001 2:41 PM
There's a mark on the stem that indicates the maximum extension that the stem should be extended. Don't go beyond that or you can have dangerous consequences.
If a taller stem is needed to get the desired extension, www.Rivendellbicycles.com is a good source.
Don't forget...Mel Erickson
Jul 10, 2001 3:26 PM
Even if you don't suffer dire consequences from raising the stem above the maximum mark it may start creaking and drive you nuts! I know from experience (just experimented before buying a stem with greater extension) Even minor pressure on one side of the bars or the other caused a creak and about drove me crazy.