Madstad "lift" effect - Road Glide Forums
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post #1 of 41 (permalink) Old 02-13-2014, 05:01 PM Thread Starter
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Madstad "lift" effect

Installed a 13 inch Madstad on my RGC a few weeks ago. I certainly like it so far, as I have been battling with buffeting issues especially during the cooler months. It does seem to have helped with this issue. I have noticed however that the front end feels like it may be "lifting" at speeds over 80 mph. I was running a 12 inch Windsplitter before and the hips on the windshield tend to push the front end down at speed. The design of the Madstad does resemble a "wing" as air goes over and under it, so it may be a "feature" I will have to get used to. Just wondering if anyone else has experienced this sensation while using the Madstad windshield.

Thanks for the replies!
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post #2 of 41 (permalink) Old 02-13-2014, 05:17 PM
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Maybe a little but its not bad. Was it a windy day ?, I think the trade off is well worth it .
Some of the other wind deflectors out there work well with the Madstad too.

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post #3 of 41 (permalink) Old 02-13-2014, 08:00 PM
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No "lift" on mine at any speed under 110! Can't tell you what happens above 110... yet.

Are you sure that you don't have the bottom of the shield out to far vs the the top. That could cause lift.


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post #4 of 41 (permalink) Old 02-13-2014, 08:05 PM
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WQings have a differant shape than the Madtad, I thing. A wing is designed for the air to have a 'longer trip over the wing, Vs. the air going under the wing.
I think I recall it being called 'Bernullis principle'...."As Velociti increases, pressure decreases".....also know as a "Venturi" effect.
(I learned this from watching "Big Bang Theory" on TV. LOL)


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post #5 of 41 (permalink) Old 02-13-2014, 08:10 PM Thread Starter
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No "lift" on mine at any speed under 110! Can't tell you what happens above 110... yet.

Are you sure that you don't have the bottom of the shield out to far vs the the top. That could cause lift.
Wiz,

I have run it a different angles. Anywhere from 57 to 60 degrees. The front end just doesn't feel "planted" like it used to and I can only attribute it to the wing design of the Madstad. Just to rule out my imagination on this issue, thought I'd get some feedback from you guys...Thanks for the reply!

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post #6 of 41 (permalink) Old 02-13-2014, 10:38 PM
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Are you tires in good condition, adequate pressure? May be a tire lost just enough air sometime after the new shield was installed.

2006 Road Glide Black Pearl, Screaming Eagle Stage 2 95" Big Bore Kit, Detachable Tour Pak, Klock Werks 8" , Wind Vest 13" , Madstad 14.5"
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post #7 of 41 (permalink) Old 02-13-2014, 11:01 PM
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Been running mine for over two years and never noticed the front end lifting up. I would think if anything the design would have more of a tendency to keep the front end down. JMO…


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post #8 of 41 (permalink) Old 02-14-2014, 05:46 AM
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I too have a slight lift above 90mph but I do agree the trade off is worth it. When I know I will be running hard I switch over to my KW shield.
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post #9 of 41 (permalink) Old 02-14-2014, 06:21 AM
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Maybe not lift but some much less wind on you that it feels lighter???

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post #10 of 41 (permalink) Old 02-14-2014, 06:47 AM
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I would suggest that you bring the windshield out from the mounting shield a little. I had some lift issues and it was coming from the rear pressure (vacuum) because not enough air is coming under the base of the shield. Moving the shield out some will relieve that rear pressure on the shield.


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