R1200GS/A LC 2013-, How to increase windshield default angle

Discussion in 'Vendors' started by Tinu76, Jul 24, 2015.

  1. Tinu76

    Tinu76 Adventurer

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    Hello All

    The 3D printed Nav5 sunshade that I designed has so many positive feedbacks yet, I want to take the opportunity to show you another little 3D project I made for my personal enjoyment :-)

    I wanted to do something against wind noise around the helmet. I thought why not try to increase the angle of the windshield to a more steeper angle so that the air flow should go more over my helmet/head instead of right against it.

    So I designed two custom parts that can be fitted to the aluminium windshield part (the one that moves when you adjust the height).

    [Update/Edit 2018-01-12: re-uploaded pictures and updated links]

    They work like this:
    [​IMG]
    [Left side example. Ignore the fact that these are aluminum, yours will be black nylon like in the pictures below]​

    As you see, I moved the axis of the fixation bolt/pin by 21.5mm towards the front, almost horizontally. The adjustment mechanism stays untouched. I tried also with more and less millimeters, but 21.5mm seemed to be best in average.

    When assembled, it has the following effect.

    Before & After:
    [​IMG]

    On each side I needed a printed part, a screw and a sleeve nut:
    [​IMG]

    Fitting: Original parts are either re-used (fixing bolt/pin, lock washer/clip) or not used at all (plastic bushings in the original joint). I set them aside when I want to restore the original condition.

    I have made 2000+ km with these parts, I have absolute confidence that they are sufficiently strong. Plus, I have the feeling the windshield is wobbling less (no joke here).

    At Shapeways, the two plasic parts are 13$ish in black and 18$ish in metallic plastic. I designed them, everyone can order and Shapeways 3D-prints and ships them "built-to-order".


    But you also need to supply 2x screw and 2x sleeve nut to make it work. These are the ones I used:

    sleeve nut M6x12, outer diameter 8mm (important)
    flange screw M6x8 ISO7380
    For the US users here:
    • Thanks to @cpallen, he provided me this link for sleeve nut and screw he is using which can be bought as a set here:
      https://www2.mcmaster.com/#96754a109/=1b3gklg
      [​IMG]
    • You will need two of these sets, $7.77 each, applicable shipping and tax will be added it says, I can't click further to see how much that is.

    • Thanks to @jaystonewee, he provided me with these eBay links:
      M6 Stainless Steel Flanged Button Head Screws Allen Socket Bolts 10pieces http://r.ebay.com/oo45Gh --> Choose M6x8mm
      M6 M8 stainless steel phillips flat nuts hex nut round head sleeve furniture http://r.ebay.com/Jq1ViT --> Choose M6x12mm
      Min. order 10pc each. For both pieces of hardware, buyers need to make sure they select the correct size from the sellers drop down menu.
      Attention, shipping is free but from Shenzhen China, might take a while.

    Of course I can't guarantee that it works for everyone, results may vary depending on helmet, helmet type and body height (I'm 1.81m). For me it had the desired effect. Maybe others could be interested too to try this? It's cheaper than to buy a new higher windscreen :-)

    Cheers,
    Tinu
    #1
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  2. fozrunner

    fozrunner Been here awhile

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    Looks interesting but how does the extra wind resistance of your more perpendicular windscreen affect the bike?
    #2
  3. Tinu76

    Tinu76 Adventurer

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    Not that I would have noticed anything unusual...
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  4. Aviatordoc

    Aviatordoc BMW R1200 GSA LC rider

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    Tinu, Before its all over, I think you will "print" and assemble your own GSA.
    :lol3
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  5. calfroper

    calfroper In it to win it.

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    How tall are you? My PUIG is perfect all the way down!
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  6. cpallen

    cpallen Nearly Adventurer

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    I really like the concept of Shapeways and 3d printing for the masses and have been very happy with Tino's Nav5 Sunshade, and even more so with the ingenious Power Port bracket designed for the left side of the cockpit. I purchased both several months ago and they have both performed flawlessly. I have been noodling on this windshield bracket too but the shipping of the required hardware to the US is cost-prohibitive. I found some seemingly equivalent parts on McMaster Carr the other day and have now ordered the hardware and brackets, and will be reporting back in a few weeks. I am also about 5'10" and hope that this turns out to be another small improvement to my already awesome GSA.

    Hats off to you Tino.

    View attachment 1048265

    Attached Files:

    #6
  7. ff654

    ff654 Adventurer

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    Where can I find the Power Port Bracket you speak of?
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  8. Amania

    Amania wine co hooligan

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    To clarify for me...Will this part make the windshield more upright or laid down toward my helmet?
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  9. cpallen

    cpallen Nearly Adventurer

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  10. cpallen

    cpallen Nearly Adventurer

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    I believe that it makes it more upright. I hope to be able to leave the windshield in the lowest position, with the top a bit more forward out of my way when standing. If it helps helmet buffeting/noise any it will be a bonus, but that's really not a big problem for me.
    #10
  11. cpallen

    cpallen Nearly Adventurer

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    I
    Update: I ordered the extension bracket and hardware and had everything on hand yesterday. Installed them this evening. It was pretty easy, even for me. It would have been even easier if I had known that only the middle windshield fastener on each side needs to be removed to take off the windshield. Also, because of the hardware selected, I needed two T27 Security Torx bits (which I happened to have). There were no instructions but installation is obvious as long as you keep in mind that there are definitely left and right parts. You reuse the pin and clip, and need to remove the small plastic bushings in the the original joint. The fit is very precise - there is no slop at all. I used a dab of blue loctite on the barrel bolts.

    orig down pos.jpg ext shield down.jpg Extensions installed.jpg
    I haven't road tested it yet but as you can see (referencing the clearance at the GPS in the fully down position as shown) that it should make a measurable difference.
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  12. elcabong

    elcabong Been here awhile

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    This might be the answer I am looking for! I had a Madstad windshield on another motorcycle and the beauty about that system was the ability to change the angle of deflection. Do you have a way to measure the angle in degrees after adding the modification? a protractor or I use a compass app on my iPhone that has a level. Thanks for the info. I think I'm going to order a pair.
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  13. cpallen

    cpallen Nearly Adventurer

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    I did not know about the level page of the compass app. How cool is that!
    With bike on center stand and the phone perpendicular to and corner flush with the top of the windshield, in the lowest position the angle = 30 degrees.
    I think I needed a drum roll there.
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  14. elcabong

    elcabong Been here awhile

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    Thank you kind Sir! Yes, the Compass app is pretty cool. I use the level feature all the time and it's pretty accurate.

    Thanks for the tip about the windshield extensions. I just ordered a pair about an hour ago. I think this will work out very well. It will definitely throw more air over the helmet. According to Madstad's data, the R1200GS has an angle range of 50-55 degrees and their recommendation is 60 degrees for greater effect in moving air over the helmet.
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  15. cpallen

    cpallen Nearly Adventurer

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    :photog
    Reminder that you will also need those two sleeve nuts and screws from McMaster-Carr or similar to do it up right. Madstad's reference must be with respect to the ground, and mine was off the vertical so it should put you pretty close to right on their recommendation. It took 10-12 days to get the parts from Shapeways and about 3-4 days to get the hardware from McMaster-Carr. It was a little less than $40 including shipping for everything. I probably could have had them installed in 15 minutes if I would have known what I was doing - I took off the wind deflectors and the cockpit trim piece and all six of the windshield screws; all I really needed to do is take off the middle windshield screw on each side. :doh

    I also bought his Nav V shade and the Power Port bracket. All slick as can be.
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  16. elcabong

    elcabong Been here awhile

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    Yeah, i did the same thing. I too removed the six screws to take off the windshield and thought people were lying when they said it took them minutes to do. Not until I saw a youtube video about the two screws.....:fpalm
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  17. Hammerdown77

    Hammerdown77 Long timer

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    I'll be interested to hear what you think of it after you road test it, but I'd be willing to be that you will have increased turbulence. Generally, making the windshield more upright makes buffeting worse. Most people who buy a Madstad bracket (I have one on my V-Strom) use it to lay the windshield back further, not position it more upright. On the V-Strom, angling the windshield back a bit dramatically reduces buffeting, but if you angle it more upright, it becomes much worse.

    It will definitely be better for offroad to have it further forward, but it would be nice if you could quickly position it back for road riding afterward.
    #17
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  18. GrumpyOne

    GrumpyOne Been here awhile

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    That's my experience as well on a 2011 GS with a GSA windshield. When I experimented, moving it more upright greatly increased turbulence. It was best laid back. And when I needed more protection, a touratech extension worked great.

    I have zero time on my new LC GSA, but I assume it will be similar.

    -jw
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  19. cpallen

    cpallen Nearly Adventurer

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    I will hopefully be able to go for a lowlands ride on Saturday and we'll see. And I agree that in general, the closer you are to the screen the better your chances are of being in the envelope of clean air. Look at all the buffeting that passengers experience no matter how big your screen is. I put a GT Windshield on my K1600GTL and it improved both the passenger and driver's airflow - more air just smother.

    One thing I noticed (which can be seen in the before/after pics above) is that now, with the screen in it's lowest position, the leading edge is dipped below the projection of the headlight guard which might smooth the airflow transition from one part to the other. Adding that guard quieted the cockpit and smoothed the airflow somewhat by itself. I also have not been running the screen in the low position - and as you raise it the angle also changes - so I think the net effect will be that I will be able to run the screen lower and create a similar pocket.

    As is has been said many times before - it's a motorcycle - you are going to get some wind, and rain, and it's going to be hot some days and cold on others. This mod was relatively economical, and enabled me to spend some quality time in the shop, and I learned a couple of things about the bike. If it doesn't have the desired effect I'll take it off and either put it in the box with all the other leftover, spare parts and failed projects from the bikes I've had over the past 30 years, or sell it on to someone in the flea market to try on their machine.
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  20. elcabong

    elcabong Been here awhile

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    I was be on the other side of the fence. When I installed my Madstad on my F700GS I almost sent it back because I set it up per their recommendation and I suffered greatly from buffeting. It wasn't the typical buffeting. It was more of a low resonance and caused severe headaches and blurry vision. No matter what I did, angled the screen towards me (flatter) raised and lowered and not until I moved the screen more upright past Madstad recommended 60 degrees to around 68. Boom! All the buffeting was instantly gone and a bubble was created. Weird.

    I'd be interested after your ride on Saturday for an update.
    #20