Honestly not trying to be a smartass, but:
verb

1. (transitive) to knock against or about; batter ⇒ the wind buffeted the boat

I bought my Street Bob used and it came with the 26 inch tall quick release windscreen. The above definition of buffeting is exactly what I got. From the wind over the top of the shield, it catches the top of my helmet. From both sides, I get random pushes to either side. I hated that thing all the way on my 250 mile trip from the dealer back to the house. The windscreen created hard short bursts from random directions, so I always had to keep sort of tense to counteract it.

I removed it completely and I'm much happier I get a strong but smooth wind resistance from the front and always (relatively) consistent. I just tighten my core a bit to keep upright and a loose but controlled grip on the bars and I'm good to roll.

 

^^ this ^^ right here is where your buffeting comes from... had the same issue with the QR 18" windshield on my Sportster. Fabbed up some lowers and got rid of about 90 percent of the turbulence. You can see them in this image...



Have the same problem now with the Memphis shades windshield i've got with my Low Rider, lowers are going to be a tough install on this thanks to the aux lights

 

From Dyna_Syx:
"Honestly not trying to be a smartass, but:
verb

(transitive) to knock against or about; batter ⇒ the wind buffeted the boat"

Smartasses are what makes this forum so, um, interesting....

I do think I would give the Batwing a try. A lot of wind does come from the sides and below the windshield.

 

It's a motorcycle so I am used to the wind. It's the turbulent air streams that get to me. The ones that shake your head very uncomfortably.

With my Valkyrie's windshield, I got a smooth flow of air over my helmet that did not shake me or give headaches.

On all the HD windshields I have used, the buffeting is so bad, it's more comfortable to ride with no windshield. The full face helps just a little.

 

The turbulent airflow that comes up past the tank is one thing, the turbulent airflow around
the windshield is another.

From the start I've used Memphis Shades lower fork air deflectors and they reduce the upward
flow a lot, but the damned HD windshield still caused a lot of turbulence all by itself.

When I went with the Batwing, 90% of the WINDSHIELD turbulence went away while still
retaining good airflow around my head and upper body. I've recently added the small deflectors to
the lower edge of the Batwing and removed the fork-mounted deflectors to see how that goes..
The jury is still out on whether the small fairing mounted deflectors are enough by themselves,
but they do help to at least some degree.

Another factor is leg position and I think that's part of the reason why so many people have
such different opinions on turbulence.

My bike has forward controls, but I retained the original, stock mid pegs. They stay folded up
except when I'm in cruise mode and then I unfold them with my heel to allow me to vary my
leg positions from time to time. When I have my legs out front, the turbulence is greater; when
I have them back on the mids, it's less. I've also found that tucking my knees in reduces turbulence
even when using the forwards. None of this should be a surprise to anyone, but it is a factor
that is constantly overlooked.


Here's a larger version of my signature pic.. the MS lower deflectors are quite obvious..

 

Not if you look to National Cycles Flyscreen - of all the things I tried this thing worked the best, removes 80-90% of the wind and not one little bit of buffeting. Only the outer part of my arms/shoulders are exposed and the wind hits mid helmet at the angle I had it set to (roughly the same as the fork angle) and again - completely smooth clean air, wish I had bought this thing first.

 

Hi guys, I do have a windshield on my Fatboy but I experienced some stability problems at high speed. Other point is that, with the heavy rain it is just impossible to see anything. The best option I have seen is to cut it so like this your sight goes over the shield.
Do anyone of you have a better option for the rain problem?
Regards

 

I hate windshields, but I love the look of that! Does it really work that well? I have a 2011 FXDC.

 

Extremely well and they are pretty cheap too. Adjusts fron narrow to wide glide and adjustable for angle as well.

 

I stopped the buffeting by changing the angle of the windshield . Something like a car windshield. I used a Rifle bracket which fits the quick release. Now my windshield is parallel to the fork tubes. The mid hole on the bracket was slightly low, so I used a large washer to make up the difference. No buffeting.