Cycling Equipment · Public discussion

Modifying a bike

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Cycling Equipment
Published
15 June 2005
Last activity
17 June 2005
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  1. My roommate is on the short side. She found a mountain bike that was
    about the smallest frame she could get (13"😉. But when she rides it she
    still feels as if the reach to the handle bars is too far. Can the
    headset be turned 180 degrees to bring the handle bars closer to her?
    Has anyone done this?

  2. No way. Turning the bars to the right will turn the wheel to the right
    no matter what you do. But turning the stem 180 degrees (I think of
    this as a stem with negative length) will make the bike handling less
    stable. For example, holding the bars with just one hand would likely
    be dangerous. I haven't tried this, but the geometry feels clear to me.
    If using a shorter stem in the normal orientation doesn't fix the
    problem, I'd try shifting the saddle forward.

    -- Gary.

    Anthony A. said:

    Of course, reversing the stem brings up another problem - reversed or
    "tiller" steering.
    In typical configuration, turning the handlebars or a bike right will
    steer the bike right - with the stem reversed turning them right will
    turn the bike left.
    A minor issue.
    I would agree with Jeff & say seek out a super short stem, and mount it
    in the traditional direction.

  3. On 15 Jun 2005 08:54:53 -0700, "Anthony A." <[email hidden]>

    Quoted message said:

    Of course, reversing the stem brings up another problem - reversed or
    "tiller" steering.
    In typical configuration, turning the handlebars or a bike right will
    steer the bike right - with the stem reversed turning them right will
    turn the bike left.

    This is a troll, right???

    jeverett3<AT>earthlink<DOT>net http://home.earthlink.net/~jeverett3

  4. Anthony A. said:

    Of course, reversing the stem brings up another problem - reversed or
    "tiller" steering.
    In typical configuration, turning the handlebars or a bike right will
    steer the bike right - with the stem reversed turning them right will
    turn the bike left.
    A minor issue.
    I would agree with Jeff & say seek out a super short stem, and mount it
    in the traditional direction.

    You can compensate for this by merely crossing over your arms before you
    grab the handlebars.

  5. John Everett said:

    This is a troll, right???

    I guess that my implied sarcasm was not implied enough, huh?
    *Note to self - use more emoticons* 8-)

    In all actuallity, I've tried a reversed stem on a chopper, and it is
    tiller-ish, and difficult to get used to. Something about having the
    bars behind the steering axis upsets the natural "feel" of steering a
    bike.

    This was discernable even against the high background noise of the
    unnatural feel of a home-grown, long wheelbase chopper.

  6. Quoted message said:

    My roommate is on the short side. She found a mountain bike that was
    about the smallest frame she could get (13"😉. But when she rides it she
    still feels as if the reach to the handle bars is too far. Can the
    headset be turned 180 degrees to bring the handle bars closer to her?
    Has anyone done this?

    Several alternate suggestions:

    Old-style cruiser bars, with their swept-back ends, might be a good
    fix. Using a short BMX stem (BMX stems often have a shorter reach
    than what's available for mountain bikes) would move the bars back a
    bit, and if reversed, it would not be as severe in the tiller-like
    feel.

    Is it possible to move the seat position forward a bit without causing
    leg angle problems for the rider?
    --
    Typoes are a feature, not a bug.
    Some gardening required to reply via email.
    Words processed in a facility that contains nuts.

  7. Anthony A. said:
    John Everett said:

    This is a troll, right???

    I guess that my implied sarcasm was not implied enough, huh?
    *Note to self - use more emoticons* 8-)

    In all actuallity, I've tried a reversed stem on a chopper, and it is
    tiller-ish, and difficult to get used to. Something about having the
    bars behind the steering axis upsets the natural "feel" of steering a
    bike.

    This was discernable even against the high background noise of the
    unnatural feel of a home-grown, long wheelbase chopper.

    The geometry has to be adjusted some if your hands are behind the
    steering axis.

    I didn't mention before (because it wasn't relevant) that I often ride
    a Tour Easy long-wheelbase recumbent. On it, the stem points
    "backwards" and the grips are somewhat behind the steering axis. In
    order to balance this, there's very little trail built into the
    steering- self-centering in accomplished by the weight of the riderr's
    hands pulling back on the handlebars. It's *different*, but after
    getting used to it, it "feels" natural. Nowadays, I swap around among
    my two recumbents and four uprights with impunity.

    Jeff

  8. On 15 Jun 2005 08:54:53 -0700, "Anthony A." <[email hidden]>

    Quoted message said:

    Of course, reversing the stem brings up another problem - reversed or
    "tiller" steering.
    In typical configuration, turning the handlebars or a bike right will
    steer the bike right - with the stem reversed turning them right will
    turn the bike left.
    A minor issue.

    One could always move to Australia, where it would then work
    correctly, as they drive on the other side of the road and are in the
    southern hemisphere. (Take your pick as to which is the appropriate
    reason.) Beware of the drop bears when biking through gum forests,
    and remember, Australian beer won't keep the flies away, but enough of
    it can make them seem amusing.

    This message brought to you by the Western Canadian Tourism Board, eh?
    Because if you believe any of it, we'd be delighted to hear that
    you'll be visiting Australia this year.
    --
    Typoes are a feature, not a bug.
    Some gardening required to reply via email.
    Words processed in a facility that contains nuts.

  9. In article <[email hidden]>,

    Werehatrack said:
    Quoted message said:

    My roommate is on the short side. She found a mountain bike that was
    about the smallest frame she could get (13"😉. But when she rides it she
    still feels as if the reach to the handle bars is too far. Can the
    headset be turned 180 degrees to bring the handle bars closer to her?
    Has anyone done this?

    Several alternate suggestions:

    Old-style cruiser bars, with their swept-back ends, might be a good
    fix. Using a short BMX stem (BMX stems often have a shorter reach
    than what's available for mountain bikes) would move the bars back a
    bit, and if reversed, it would not be as severe in the tiller-like
    feel.

    Not sure whether this is a threadless thing or not, but thanks to
    current dirt-jump and downhill setups, you can now get wildly overbuilt
    threadless stems in lengths so short that they're pretty much limited by
    the need for the steerer hole and the handlebar hole to avoid
    overlapping:

    http://raceface.com/components/stems/evolvedh-stem.htm

    That's a 35mm stem, and not radical design in this market.

    http://syncros.com/stems.htm

    Okay, the On Top stem is pretty radical: It's a 0mm 90-degree stem. Yes,
    you may need to look at the photo, as this stem transcends the normal
    system for specifying stem dimensions. Also available in a 20mm version,
    not shown.

    Quoted message said:

    Is it possible to move the seat position forward a bit without causing
    leg angle problems for the rider?

    --
    Ryan Cousineau [email hidden] http://www.wiredcola.com/
    "I don't want kids who are thinking about going into mathematics
    to think that they have to take drugs to succeed." -Paul Erdos

  10. "Werehatrack" wrote: (clip) Old-style cruiser bars, with their swept-back
    ends, might be a good fix. (clip)
    ^^^^^^^^^^^^^^^
    Whether you put your hands behind the stem axis by reversing the stem, or do
    it by installing swept-back handlebars makes NO DIFFERENCE. The connection
    from your grip to the fork is virtually inflexible, so it doesn't matter
    what shape it is. In an earlier post, I suggested a comparison to a car
    steering wheel. You can steer your car equally well whether you hold the
    wheel at the bottom or the top. I have seen dumb-ass kids ride a bike with
    a steering wheel installed. Don't you see that you turn the wheel (or the
    handlebars) clockwise or counterclockwise regardless of where you hold it?

  11. "Leo Lichtman" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:


    "Werehatrack" wrote: (clip) Old-style cruiser bars, with their swept-back
    ends, might be a good fix. (clip)
    ^^^^^^^^^^^^^^^
    Whether you put your hands behind the stem axis by reversing the stem, or
    do it by installing swept-back handlebars makes NO DIFFERENCE. The
    connection from your grip to the fork is virtually inflexible, so it
    doesn't matter what shape it is. In an earlier post, I suggested a
    comparison to a car steering wheel. You can steer your car equally well
    whether you hold the wheel at the bottom or the top. I have seen dumb-ass
    kids ride a bike with a steering wheel installed. Don't you see that you
    turn the wheel (or the handlebars) clockwise or counterclockwise
    regardless of where you hold it?


    I'm not sure I get you ...
    Pushing the bars right (turning them counterclockwise) moves you right on a
    bike.
    Or so I thought.
    Turning the steering wheel counterclockwise (were it a bar, pushing it
    right) moves you left.
    Or so I thought.

    Did you have a different idea to convey ?
    --
    Bonne route !

    Sandy
    Verneuil-sur-seine FR

  12. "Sandy" wrote: (clip) Did you have a different idea to convey ?
    ^^^^^^^^^^^^^^^^
    First, you and I must have different ideas of clockwise and
    counterclockwise. To me, assuming a mountain-bike handlebar, straight ahead
    puts your left hand at 9:00 and your right at 3:00. Turning "clockwise"
    would move your left hand to 10:00 and your right to 4:00. But that's not
    my point. My point is that any connection from your hands to the stem of
    the bike allows you to rotate the fork clockwise or counterclockwise.
    Steering a bike with a forward pointing stem is like holding the steering
    wheel at 9:30 and 2:30. Steering a bike with a rearward pointing stem is
    like holding a steering wheel at 8:30 and 3:30. It hardly changes the way
    your hands move to produce the same steering effect. All the things we
    already knew about steering a bike remain the same, such as: pushing the
    left handle forward moves the bottom of the front wheel to the right,
    resulting in a left-leaning left turn.

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