Cycling Equipment · Public discussion

Stem w/Reducer Bushing

Started by Jeff Starr · · Last activity · 2 posts · 376 views

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Cycling Equipment
Published
23 September 2004
Last activity
26 September 2004
Original author
Jeff Starr
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  1. Hi, I have a 1" threadless fork and I'm using a Ritchey WCS stem. The
    stem is 11/8" and is used with a reducer bushing. It seems that when I
    use a torque wrench to properly tighten the clamp bolts, recommended
    is 52-86 inch/lbs, the clamp is totally squeezed together. There is
    no gap left at all. When I was running a Mutant stem with aluminum
    bars, if the clamp was without a gap, it increased vibration, through
    the bars.Now I'm using Easton EC90 composite drop bars.
    I have tried two different reducer bushings, the stock Ritchey and the
    one that came with the Mutant. Is there anything I can do to either
    wrap the outer side of the bushing or increase the gap in the stem, so
    that I can properyt torque it down and still have a gap?

    Another question, should the steerer tube be greased or dry? I just
    repacked the headset with grease and regreased the clamp bolts, as I
    developed a creak, after going over a very long wooden slat bridge. It
    vibrated the [censored] out of everything, including me. The bike is usually
    creak and rattle free. Later in my ride today, I'm hearing this noise,
    and it finally dawned on me, why it happened. Usually those little
    bridges are usually about 30-40 feet, but this one had to be at least
    a 100ft.

    Life is Good!
    Jeff

  2. Quoted message said:

    From: Jeff Starr [email hidden]

    Quoted message said:

    Message-ID: <[email hidden]>

    Quoted message said:

    Is there anything I can do to either
    wrap the outer side of the bushing or increase the gap in the stem, so
    that I can properyt torque it down and still have a gap?

    Yes, you can apply acrylic adhesive backed aluminum or stainless steel tape to
    one or both sides of either bushing, and try them that way. That adds about
    0.005 inch of fit total per layer, around 0.002 inch per side. Or without
    fiddling with tape application, cut apart a soda can and try that. The walls
    are almost but not quite the same thickness all the way down.

    Quoted message said:

    Another question, should the steerer tube be greased or dry?

    It should be clean and dry, I think.

    I don't have a heck of a lot of experience with these, over that many miles, so
    I can't say for sure.

    Yours,
    Doug Goncz ( ftp://users.aol.com/DGoncz/incoming )
    Student member SAE for one year.
    I love: Dona, Jeff, Kim, Mom, Neelix, Tasha, and Teri, alphabetically.
    I drive: A double-step Thunderbolt with 657% range.

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