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Thread: Big Fairing for Small Price

  1. #1
    Senior Member Big Fairing for Small Price StratTuner's Avatar
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    Big Fairing for Small Price

    I remember riding down from Reno, NV to California's Golden Gate Bridge. It was, morning, 28F, and my knees were freezing. The constant 50 MPH wind stream plus what ever chill factor was at work was not fun. I thought, I need to get fairings.

    I remember Beemerphile's approach. (can't find the link just now). It was classy and executed with precision on crash bars....which I don't have... hmmm...

    Well...I started with my favorite construct..the 1" PVC "T" with a 1/2" slip. I cut the 1" round part in half and put it against the frame down by the cylinders. There is one of these frame bars on each side, so I had a secure, symmetrical, footing to start with. Two zip ties (one one each side of the half pipe) give you a fairly solid support.

    To that I added a lenght of 1/2" pvc pipe and went up and out... to a 90 deg. elbow. OK...time to go back and anchor the top to....to what? With another long pipe I just rotated the structure in to see what it would touch, and it came to rest near one of the bolts that hold the wind screen on. Perfect. That will do. I capped the pipe, drilled a hole through it, and zip tied it around the bolt where the lexan gaps at the support flat bar that make my home made wind shield.

    Now I had a triangle shape that I new I could fill in with plastic cut from a walmart office waste paper basket. ($4). I cut one big triangle to cover the big opening. Then, I had to make a long rectangular piece to go up from the triangle to where the capped top fixed to the windshield. That took time as I had to contour the piece to fit against the frunk sides. I decided to leave a 1/4" gap so that the black plastic wouldn't have the chance to scratch the surfaces.

    Here is the result. Home Made! Ugly? (maybe) Ridiculous... possibly....but wow! It's effective, and it didn't cost much.

    Version three might have two 45 deg. elbows per side instead of a single 90 deg. elbow... cut the black plastic around that... and it will not stick out as much and maybe look a little better too.

    The fairing is high enough that I can still use the highway pegs attached to the frame. That was another important consideration in my case.

    Big Fairing for Small Price-fairing1-jpg

    Big Fairing for Small Price-fairing2-jpg

    Big Fairing for Small Price-fairing3-jpg

    Big Fairing for Small Price-fairing4-jpg

    It's not for everyone, but it didn't cost much.

    Aero considerations: While it's a larger forward-facing surface, it's also a smoother one. Drag (I hope) will actually be less since the air stream has to move over two large smooth surfaces and not over the jagged, unordered, surfaces that are the sides of a motorcycle.
    Last edited by StratTuner; 25th March 2015 at 18:22.
    - StratTuner
    NC700XFJR1300

    "If you don't understand him, and he don't die young,
    he'll probly just ride away."
    - Willie Nelson

  2. #2
    Senior Member Ed Up's Avatar
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    impressive work.

  3. #3
    Senior Member Big Fairing for Small Price itlives's Avatar
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    How many times did it take Thomas Edison to perfect the light bulb? I don't know either, but it was a lot!

    I'm always impressed with people who will "go for it".

  4. #4
    Super Moderator Big Fairing for Small Price 670cc's Avatar
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    Great ingenuity and execution!
    Greg
    GWRRA Member
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    NanCyX . . . . . . . . . . The 250

  5. #5
    Senior Member Big Fairing for Small Price StratTuner's Avatar
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    I'm glad someone ... noticed... thank you gentleman. This sort of work isn't much in vogue, but it is where more finished, elegant, and expensive items start out.

    (PS... the Google gods say Edison made 1000 attempts at the lightbulb. As I recall from Science classes, the filament metal that finally worked (burned brightly and for a long time), was Tungsten. I wish Mr. Edison were around to see the current state of the art light bulbs.

    That reminds me... here's a short story about my days interacting with high school students in a computer lab...
    student: "Mr. Strat Tuner, I just don't care about history and inventors. Who cares who Edison was..."
    strattuner: "your mom pay the electric bill this month? "
    student: "yeah..."
    strattuner: "who did she pay the money too?"
    student: (with hand over mouth) "ohhhhh!"
    - StratTuner
    NC700XFJR1300

    "If you don't understand him, and he don't die young,
    he'll probly just ride away."
    - Willie Nelson

  6. #6
    Senior Member Big Fairing for Small Price StratTuner's Avatar
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    Quote Originally Posted by 670cc View Post
    Great ingenuity and execution!
    I'd love to see HondaBikePro's adaptation of this effort!

    I just decided to trim it up, and I note that each side comes off after clipping three zip ties.... easy on.. easy off....completely reversible... I do like it.
    - StratTuner
    NC700XFJR1300

    "If you don't understand him, and he don't die young,
    he'll probly just ride away."
    - Willie Nelson

  7. #7
    Senior Member Big Fairing for Small Price
    Big Fairing for Small Price
    DirtFlier's Avatar
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    [Aero considerations: While it's a larger forward-facing surface, it's also a smoother one...]

    My guess is that the increase in frontal area will trump the smoothness.

  8. #8
    Senior Member Big Fairing for Small Price StratTuner's Avatar
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    Quote Originally Posted by DirtFlier View Post
    [Aero considerations: While it's a larger forward-facing surface, it's also a smoother one...]

    My guess is that the increase in frontal area will trump the smoothness.
    Yes... I wondered about that. Math would help me there, but math and I are barely on speaking terms.

    When I get back from the trip....or maybe tonight .... I want to cut off the points of the two triangles and reduce the surface area by about 1/3. That will still keep the air stream off my knees but lower resistance.

    That means replacing the 90 deg. elbow with two 45 deg. elbows connected by a straight piece. Should look better too.
    - StratTuner
    NC700XFJR1300

    "If you don't understand him, and he don't die young,
    he'll probly just ride away."
    - Willie Nelson

  9. #9
    Commuter Extraordinaire Big Fairing for Small Price
    Big Fairing for Small Price
    SergeantChuck's Avatar
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    How did this affect your fuel economy although I don't worry about that much? Just curious?

  10. #10
    Senior Member Big Fairing for Small Price StratTuner's Avatar
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    Quote Originally Posted by SergeantChuck View Post
    How did this affect your fuel economy although I don't worry about that much? Just curious?
    I haven't had time to compile any data. I'd like to take off everything but the fairing, ride 180 miles, and calculate MPG.
    Then I could take off the fairing and do the same on the same day.... that might give some useful #'s.
    - StratTuner
    NC700XFJR1300

    "If you don't understand him, and he don't die young,
    he'll probly just ride away."
    - Willie Nelson

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