|
BMW Motorcycle Windscreen - BMW K75
Windscreen Buffeting Fix
Back to the
w
BW BMW
Page
Do you own a BMW K75 or K100 motorcycle with one of these OEM
windscreens?
If you own a BMW K100 or K75 motorcycle and you have the standard
windscreen (BMW part number 46 63 2 303 245), you know about the
incredible amount of buffeting and noise that you get from the air
pouring off that screen and right onto your helmet. I tried
every solution I could think of, including replacement windscreens
from other vendors, but nothing seemed to work. I kept
thinking that if only the windscreen was about 2" higher and pushed
a bit forward, it would be perfect.
I was seriously ready to trade in my BMW on something else, when I
came across the idea of making a set of spacers that would screw
onto the existing upper support brackets and would push the
windscreen forward and up. I spent a lot of time and money on
figuring out the ideal solution, and it works!
NOTE: If you are over about 6' tall, these may not work for
you! One user is 6'4" and moving the windscreen forward made the
buffeting worse for him. I am 5'10" tall; I estimate that the
spacers moved the buffeting from around my ears to the top of my
helmet, about 2". So if you are taller than about 6', you may
still have buffeting problems, and I'm afraid there is probably no
cure if you are a K75 or K100 standard owner. 8-(
These spacers are CNC precision machined from 304 stainless
steel to my specifications. It is a very simple, 5-minute job to
unscrew the nuts on your upper windscreen attachments and screw in
these spacers.
The Results: Measured from the top front edge of the gas
tank filler cap, these spacers move the top of the windscreen from
18-1/4" high to 20" high. They push out the windscreen from 14-1/2"
from the outer edge of my helmet visor to 18-1/4".
On my bike, it completely removes the buffeting and gives me a
nice pocket of still air to ride in. I can even ride with my
helmet visor fully open with very little noise! I'm 5'10"
tall, and I can very easily see over the top of the screen. This
has completely changed my opinion of the bike from "ready to trade"
to "this is a great bike"!
I'm not claiming that this fix has completely eliminated buffeting
and noise. But I estimate that 80-85% of the buffeting has
been eliminated. I honestly hated the original 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. I really like the way
the bike works now -- I can hear sweet engine noises I never knew
where there. Now I know why they call it a whiner!
More Information:
- Here are before/after photos of the windscreen with me on
the bike.
- Here are installation instructions for the
spacers.
- Here is a copy of the drawing if you'd like to get
them made for yourself; it should cost between $35 and $50 to have
them made at your local machine shop.
- More tips from webBikeWorld visitors on how to fix
BMW windscreen buffeting.
Do these spacers work? Here's some unsolicited
feedback:
-
"Rick, you should market, box and sell your spacers. I
used them today and I must tell you, as you already know, they are
amazing. It was incredible to actually ride and not suffer
from so much buffeting and wind noise. I love being able to
hear my engine, exhaust tunes and most of my surroundings. I
really enjoyed my ride in and out of work today. It was truly
amazing...."
- "After reviewing your article I installed windscreen spacers
and I gotta agree they work great!...(In our state) we can ride
without helmets. So I can really tell the sound reduction... AND as
a benefit the bugs are airlifted right over my head
(usually!)."
-
"Found your great advice on the web. I'd put over 140,000
miles on my '84 K100, and added the fairing last year but I was so
disappointed that I took it off. Took your drawing to a local
machine shop. Estimate was $50 for all the metric work, but if I
changed the top threads to standard he dropped it to $30. Money
well spent, I'd say. Put them on, and I'm loving my fairing
now. What a magnificent difference. Thank you so much for the
drawings. I'd have never been able to do this without them. This is
what the web was made for."
- [NOTE: This visitor adapted the design (see "more tips")]: "Not quite as nice as the machined SS
design you have on the website. Nor quite as long, but it
works. My wife, who is 5' 6", immediately saw a difference in
wind buffeting and has since ridden out to Vegas and back to
Philadelphia with her K75. Another happy camper. Thanks
for the great idea on the adapter though!!!!"
- "Thank You Rick, The spacers are working awesome on my K75,
you're an ear saver, it's just as quiet now without my ear plugs
in, can't imagine how quiet it will be with them in now that I
don't have the wind buffeting in my helmet. I was
charged 40 bucks, and met a great machinist."
- I just came back from my first test ride. You were
absolutely right: it works! It doesn't remove the buffeting totally
but it helps a lot. Before I have the spacers cut (they
asking me 60$ cdn around here) I made a test with couplings and
bolts -- metric hardware is easy to find in Canada. Cost me
two bucks! Because I am a 6 foot tall rider, I had a little
doubt it would work, but it does! It is not as quiet as being
behind a real big fairing but it will save my ears... Thank
you again. By Monday I will be at the machine shop to order.
That gave me the opportunity to meet a great bike-fanatic guy
! So long and ride safely. Long live the K75!
|