BMW K12RS 1999 Is a windscreen technical repair available yet?

Discussion in 'Motorbike Technical Discussion' started by Renee Shepherd, Aug 31, 2004.

  1. Two weeks ago I purchased a 1999 BMW K1200RS motorcycle in Phoenix
    with 38K miles on it for $9500 (adjustable Ohlins in the rear,
    non-adjustable in front, BMW panniers & top bag, tank bag, Verholen
    relocated pegs, Corbin saddle, re-straightened rims, etc.) and rode it
    back this weekend to Gilroy California (just a few hundred miles).

    The first hundred miles on this 1999 BMW K 1200 RS were interesting,
    the second hundred disconcerting, the third hundred painful, the next
    hundred downright miserable, and, it got worse by the mile from there.

    I won't go into the litany of BMW creature discomforts except to stay
    on topic for a requested technical 'fix' to the windscreen shut-down
    problem.

    You see, the BMW stock windscreen is atrocious! (I'm giving it a lot
    more credit than it deserves by calling it a windscreen as it doesn't
    screen anything. It directs the wind into the worst possible place -
    your face! In the down position, it directs the swirling buffeting
    airflow direct to the sides of your helmet; in the up position, it
    won't stay up for more than a mile or two (if that). Plop. Back in the
    down position.

    While the up position for this 1999 BMW K1200 RS bike is almost as bad
    as the down position, it's at least a bit better than horrible (so, I
    have a need to KEEP that thing up!).

    Short of shoving styrofoam blocks under the 1999 BMW K 1200RS
    windscreen to keep it up - has anyone come up with a technical 'fix'
    to this apparently well-known problem?

    Renee Shepherd
     
    Renee Shepherd, Aug 31, 2004
    #1
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  2. (Renee Shepherd) wrote in
    I just got a 98 at the beginning of Aug with 7k. $8900, no bags.
    It came with the BMW Comfort screen installed already, which seems to
    work OK in the up position. Going over a sharp bump will slam it back
    down again though (RR tracks - not on the freeway).

    You could try a loop of M/C innertube (rubberband) from the lower arm
    pulled over the top of the screen support post. I have not tried this
    yet. Might do if it gets annoying.

    A lot of K bike info available at

    http://www.gunsmoke.com/scot/k12/windscreen.html

    and products at

    http://piratesk12site.net/Product.htm
    Styrofoam tends to chip off with repeated handling and compresses
    a bit each time you press on it. Maybe a wooden stick of appropriate
    length with a notch in each end to lodge in the screen center hole and
    somewhere in front of the gages.
     
    Brian Johnsen, Aug 31, 2004
    #2
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  3. Renee Shepherd

    Seth Guest

    My '02 stays in the up position regardless of speed.
    I find the down position more comfortable, and the up position quieter (and
    better rain protection).
    Not sure how well known a problem it is, this is the first I've heard of it.
    But I don't follow every forum there is...
     
    Seth, Sep 4, 2004
    #3
  4. I find the down position more comfortable, and the up position quieter (and
    I'm told by the local BMW dealership the BMW "comfort" windscreen was
    designed to be 'effective' starting at 120 mph and that it is totally
    ineffective (I vouch for that) at half that speed. Basically it's my
    misunderstanding. They said the 1999 BMW K1200RS wasn't designed to be
    comfortable at speeds less than 100 mph. The fact is, in my BMW
    situation, anything over 40 mph is downright painful; and I don't even
    get closer to 100 mph than about 85 mph or so (where the utter pain
    directed to my head by the BMW "comfort" windscreen seems the most
    severe).

    It feels like Mike Tyson is boxing both sides of my head in continuing
    and intermittent intervals until I slow down to about 40mph on the
    1999 BMW K1200 RS motorcycle. I even purchased a new tighter-fitting
    full-face helmet from helmetcity, which only helped a little. What was
    torture before is now only severly painful. For me, the punishment
    delivered by the BMW K1200RS fairing makes the 1999 BMW K 1200 RS a
    50-mile bike and no farther (as I can't take the wind turbulent boxing
    any more than that).

    Thanks for all the suggestions.

    I cut a bicycle inner tube (as suggested) and wrapped it around the
    two Z supports for the BMW windscreen. This seems to hold the BMW
    windshield up through half the bumps that used to tumble it down. If I
    add additional rubber supports, it might even stay up for 15 minutes
    to an hour! Rube Goldberg would be proud of my new-found BMW
    engineering talents. :)

    I had the local dealership take a look and they felt there was nothing
    wrong with the windscreen (in so much as they all act that way, they
    said, at speeds it wasn't designed for). They said it stays up at high
    speeds (which I must interpret to be greater than 85 mph). I don't
    know. I only have a BMW motorcyle study of 1 - so for me to conclude
    too much from my personal BMW experience would be statistically
    invalid.

    If you have a 1999 BMW K 1200RS, would you kindly post how you cope
    with the wind buffeting windscreen at 60mph? Please ... I beg you for
    assistance!
     
    Renee Shepherd, Sep 5, 2004
    #4
  5. Not sure how well known a problem it is, this is the first I've heard of it.

    I guess I shouldn't have said it's well known 'cause I have no idea
    how well known this BMW engineering flaw really is. The BMW dealership
    seemed to know all about it though.

    After taking a quick look at my 1999 BMW K1200RS, they said I already
    had the optional BMW "Comfort Wind Screen" (part number is 46 63 2 347
    650). This is already taller and wider than the stock screen.

    The sales guy, to his credit, was sympathetic as he has seen many
    unhappy BMW riders come his way. In fact, he said he hates to sell the
    BMW K1200RS bikes because he had so many first-time cum last-time BMW
    owners lose faith in BMW as a whole because of the lack of engineering
    that went into the stock BMW K1200 RS fairing. They suggested either
    an aftermarket windscreen (e.g.,
    http://www.1tail.com/sa/cart/detail.asp?pg={B55691D4-61D3-435C-98A4-B358EB1B77C5}
    ), or a new, more comfortable, bike.

    Apparently other BMW motorcycles are affected as home-brew fixes
    exist, e.g.:
    http://www.webbikeworld.com/BMW-windscreen/bmw-windscreen.htm
    "I honestly hated the original BMW windscreen -- I had to do
    something
    or sell the bike. I always wear Moldex PuraFit 6800
    earplugs,
    inserted properly, but the noise in the original
    configuration was
    punishing."

    http://www.gunsmoke.com/scot/k12/windscreen.html
    "BMW's RS fairings have always offered the barest essentials
    in weather protection, instead being optimized for
    aerodynamics
    and high speed stability. The K1200RS is no exception ...
    I've
    also had the shield drop down from the up position when the
    bike
    hits a bump ..."

    http://www.ibmwr.org/ktech/k12-tips.shtml#windscreenandwindnoise
    "Reduce BMW Wind Screen and Wind Noise with Wilbers' Wind Dots
    These are surface guards made by Shepard Industries.
    They are made of clear plastic and are dome shaped.
    Apply these to the trailing edge of the BMW comfort screen
    (about 1 inch apart) and on the side of the helmet over the
    ear areas (again, about 1 inch apart), to reduce wind noise.
    Experiment with placement.

    The Wind Dots work by disrupting the build up of low air

    pressure zones and by forming a thin layer of turbulent air
    that fast moving air can move over smoothly."

    http://faq.f650.com/FAQs/Buffeting.htm
    "There are quite a few "solutions" for fixing [BMW windscreen]
    buffeting. The intention of this FAQ is to try and include
    all
    the solutions and present them in one place."
     
    Renee Shepherd, Sep 5, 2004
    #5
  6. Not sure how well known a problem it is, this is the first I've heard of it.

    Yes of course it's well known. It's a BMW. Smooth as jagged rocks. The
    only thing smooth on a BMW is the marketing hype. Now that's slick!

    Here are some additional resources to prove your point. Basically, if
    you didn't want to feel intense pain when you ride a BMW, you should
    not have purchased a BMW. Caveat emptor.

    http://www.gunsmoke.com/scot/k12/k1200rs_fits.html#Anchor-49575

    The worst offender is the adjustable windscreen. In its lower position
    it directs air at the bottom of this 5'10" rider's helmet, creating a
    roar very reminiscent of the K75S. When raised, air buffets the
    eyeport hard enough to jostle a head to and fro. Only at speeds over
    90 mph does the windscreen work well, with the full upright position
    the only way to survive excursions over 140 mph without having to
    lever your head from deep between your shoulders.


    http://www.slack.net/~thundt/Bmw/k1200rs.txt
    In the raised position the BMW K 1200 RS windscreen offered adequate
    protection for my head, butt the buffeting on my shoulders leads me to
    wonder how all these mc magazine writers can supposedly ride this
    thing long distances at 100+mph speeds with any degree of acceptable
    comfort. I know that this is a sports bike butt come on, the buffeting
    level is unacceptably high.

    And I think the inability of this BMW K 1200 RS windscreen to stay in
    the upright position is a safety related defect. Even without the
    added winglet, a mild bump consistently collapses the screen to the
    lower position.

    Imagine yourself on a dark stormy evening rounding a corner at an
    aggressive pace. It is raining but you are coping with the conditions,
    when you pick your line and execute the corner and that unknown,
    unseen bump (why are they always at the apex?) which the BMW K1200RS
    telelever/paralever acknowledges without unsettling the bike but
    still jaring the machine a bit. Plop goes the windscreen splashing a
    sheet of water accross your faceshield temporarily blurring your
    vision at the most inopportune time. Two positions mean "two
    positions": BMW engineers. Not one stable position and one optional
    position only for perfect roads. This BMW K1200 RS windsheild is
    unacceptable. This is annoying.

    http://www.motorcycle.com/mo/mcbmw/11v12.html
    The BMW K1200RS has a two position hand adjustable shield that ...
    likes to fall going over bumps.

    http://www.k12rs.com/news.html
    The [BMW K 1200 RS] windscreen did not work for me at all. I tried it
    in various positions and found all of them to be very noisy.

    I easily conclude it's all your fault - for buying a BMW (smooth as
    chalk scraping along a chalkboard).
     
    Orak Listalavostok, Sep 5, 2004
    #6
  7. fwiw, my 96 R1100RS originally had a aftermarket oversized windscreen when
    I got it, and I hated it, it buffetted me quite a lot, and I replaced it
    with an original mini screen, which is great. keeps the wind load off my
    torso, and leaves my head in the clear nonturbulent air at any speed up to
    the 130+ MPH top speed.
     
    John R Pierce, Sep 7, 2004
    #7
  8. Renee Shepherd

    Mark Hickey Guest

    I just put an aftermarket screen on my '91 K100RS. It also took the
    wind load off my torso (making the forward position a little less
    comfortable since it requires more arm to hold the position now), but
    precisely channels the wind over my helmet. I can sit up a couple
    inches and hear a huge increase in wind noise...

    All in all, it's a great improvement IMHO.

    Mark Hickey
     
    Mark Hickey, Sep 7, 2004
    #8
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