As you want some real feedback , I have a couple observations.
I'm an old fart and I like to finish my cigarette while I ride off into the sunset....
That said , I put the fork air baffle on my 2006 FLHT and was thrilled with what it did for my riding pleasure.
It decreased the updraft behind my windshield a fair amount after installation , and didn't blow my ashes all over the place.
So I figured I'd move it over to my 2009 FLHTCU when I traded the 06 in.
It doesn't seem to do a bit of good on the 09 at all.....
Both bikes were EG style batwings , both had lower fairings , both had a 12" shield , both had Fairing air deflectors also.
I think the big difference is the 5 gallon to 6 gallon tank and new frame dimensions .
The 09 actually developed a spark knock over 60 degrees riding weather.
Note , that this is on a bone stock bike with no tuning and 6,000 miles on the clock.
I thought this was a bit weird , so I removed it and ran again the next day , no spark knock.
So I put it back on and had the spark knock back , once removed it was gone again.....
I also noticed on the 09 , a sharp blast of air across my shins with the deflector on , not really on the 06.
The blast was gone when removed.
So I really liked it on the 06 , and really don't like it for the 09.
I really believe it shrouds the front cylinder head on the 09 just a bit much compared to the 06.
Just my observations.
Mick

 

I have one on my 2009 Ultra and if it wasn't chrome, I would have ditched it already. Doesn't help cool down the engine or reduce buffeting. After reading Mick's post, I think I'm gonna take it off and sell it ......... or use it as an ashtray.
I'll mount an air horn where it's mounted. Much more useful IMO.

 

I quit smoking and when I did I still didnt notice a difference .

 

I put one on my SG. It ran hot to the point that everytime I stopped at a light the rear cyl would kick out because it was so hot. Took the baffle off and the problem went away. I had it on for 1 weekend. Now it collects dust in my garage.

 

It's $25 and 2 screws ... by it, try it, keep it or trash it ...

 

My bike came stock with the air baffle already lounted. My mechanic says that H-D recomends for me here in TX to take it off in the summer and put it on in the winter. I did take it off in the summer and I got more wind to the face from under the fairing,but in the winter I like it on cause I lets the engine get a little bit warmer,which helps keep my feet warm with the soft lowers,but either way,it does not make as much different engine heat wise as it does wind to the face wise.JMHO

 

here we go again with the batwinger saying they dont make a difference,,,probaly dont on your bikes but they make a huge difference on a road glide, just maybe thats why they put them on a road glide

 

You are correct mslater! I am still of the opinion that some of the posters here are confusing the different types of air dams used by the MOCO. There are some that attach to the forks. There are some that attach to the seat area. There are some attached to the triple tree under the tank. Not all baggers use the same device.

The air dam (baffle) used by the Road Glide is attached to the tripple tree with usually 3 screws. It's purpose is to evacuate hot air which would be trapped under the tank and the long sharknose fairing. It is usually left on in the colder months and removed during warmer months in order to provide optimum comfort for the rider. The air dam on Road Glides is very effective (when installed) by removing warm air, but it does contribute to the amount of turbulence which hits the rider (that would be the air coming up from the knee area).

For model year 2010 the triple tree fork baffle has been removed on the Road Glide. The reason being that the sharknose fairing has been changed a few degrees. Evidently the engineers felt the air baffle was no longer needed. We were testing 3 pre 2010 Road Glides in our efforts.

Leave the Road Glide triple tree baffle off year around if you have hard lower fairings attached as that will provide the least amount of air coming up from the knee area. Several of us spent a recent day trying out all the different configurations on Road Glides and we all came to the same conclusions. We used 4 foot long cloth streamers to see where and how the air flows changed as well as an infrared temperature gage to watch the temps. It was quite amazing to see how the streamers reacted to the removal of the air baffle and the addition of hard lowers. Interestingly enough, on the day of our testing, (75 degrees ambient) the jug temp on the front cylinder was reading about 50 degrees cooler than the rear jug. This was expected.
Once again, these tests were done with 3 Road Glides with and without the triple tree fork baffle and with and without hard lower fairings. So if you are riding something else, expect different results.

 

It works for me on my 07 Ultra, you can feel the difference on the amount of wind coming up under the fairing.

 

Same thing for me on my 05. It does make a difference. A noticeable difference.