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Discussion Starter #1
The other day I responded to a new rider's questions about his LT and I noted that over 100 mph I started getting an oscillation in the front end of my LT that increased with speed. If I put my windshield down, it reduced the oscillation considerably. I have ME 880's that are in really good condition at 6,500 miles,and the pressures are 47 rear, and 42 front.

I stood looking at the LT today and my eyes settled on the Euro wings I ordered with my Cee Bailey +2, -4 windshield. They stick out like bat wings and I started thinking that maybe they were causing turbulence at higher speeds.

Anyone else have any thoughts?

I probably am going to get another one without the Euro wings later this summer due to dings and chingers from rocks and debris hitting it over the last year or so.
 

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Velocityguy said:
The other day I responded to a new rider's questions about his LT and I noted that over 100 mph I started getting an oscillation in the front end of my LT that increased with speed. If I put my windshield down, it reduced the oscillation considerably. I have ME 880's that are in really good condition at 6,500 miles,and the pressures are 47 rear, and 42 front.

I stood looking at the LT today and my eyes settled on the Euro wings I ordered with my Cee Bailey +2, -4 windshield. They stick out like bat wings and I started thinking that maybe they were causing turbulence at higher speeds.

Anyone else have any thoughts?

I probably am going to get another one without the Euro wings later this summer due to dings and chingers from rocks and debris hitting it over the last year or so.
100+ !
No LEOS's inTucson? :cool:
 

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Yeah, that could be part of the "turbulence" generating problem.

So, remove the windscreen and ride again.. same problem?

(don't forget to use a full coverage helmet with the face screen down... and "tuck in".

also.. remove the trunk.. that brick can cause some problems at those speeds.
 

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Discussion Starter #4
Yes, there are LEO's in my area but, I've been very lucky and now that I've talked about it, Murphy probably has been listening and my time could well be at hand. First offense.....traffic school on Saturdays to remove the points and record of the citation. One good Get Out of Jail card allowed every three years.
 

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Save your saturdays and stay below 100+. That will solve your problem:)
 

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What shape is the front tire??

My oscillation went away with the tire change.
 

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I've heard of these symptoms - but only from Hayabusa pilots.

It is due to the perforations in the seat cover material.

Above 175 mph the additional airflow will cause a vortex in the time/space flux that will eventually suck your intestines out.

Not a pretty picture. :(


(Ditch the cheesey acrylic windshield Lee and go back to a polycarbonate OEM or V-stream. Acrylic is so flimsy it will "flutter" at high speeds.
You will also have about 25 times the impact resistance. ;) )

Ride fast. Ride hard. Ride often. :D
 

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Velocityguy said:
The other day I responded to a new rider's questions about his LT and I noted that over 100 mph I started getting an oscillation in the front end of my LT that increased with speed. If I put my windshield down, it reduced the oscillation considerably. I have ME 880's that are in really good condition at 6,500 miles,and the pressures are 47 rear, and 42 front.

I stood looking at the LT today and my eyes settled on the Euro wings I ordered with my Cee Bailey +2, -4 windshield. They stick out like bat wings and I started thinking that maybe they were causing turbulence at higher speeds.

Anyone else have any thoughts?

I probably am going to get another one without the Euro wings later this summer due to dings and chingers from rocks and debris hitting it over the last year or so.
I would guess you were experiencing a phenomenon called vortex shedding. Here is a fairly straightforward description.

http://en.wikipedia.org/wiki/Vortex_shedding

Although cylindrical objects are often shown in examples, an object does not have to be a cylinder in order to shed vortices.

Voyager
 

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Voyager said:
I would guess you were experiencing a phenomenon called vortex shedding. Here is a fairly straightforward description.

http://en.wikipedia.org/wiki/Vortex_shedding

Although cylindrical objects are often shown in examples, an object does not have to be a cylinder in order to shed vortices.

Voyager
What he really needs are vortex generators - on the outside of the Cee Bailey's "wings": :rotf:

http://en.wikipedia.org/wiki/Vortex_generator

Damn. Don't ya just love Wiki? ;)
 

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RonKMiller said:
What he really needs are vortex generators - on the outside of the Cee Bailey's "wings": :rotf:

http://en.wikipedia.org/wiki/Vortex_generator

Damn. Don't ya just love Wiki? ;)
The only flaw in your logic is that there is no boundary layer to energize once you are past the back of the windshield! :)

Voyager
 

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Discussion Starter #12
So let's see if I've got this right. In order to keep up with my Hayabusa riding buddies all I need to do is tape ribbons to my CB wings to disrupt the vortex as well as put duct tape over all the perforations in my KonTours seat.

Gee! That sounds like something I can do for next weekend. :rolleyes:
 
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