when i put my sheild down on my helmet with sun glasses on going into the sun i get all these strange colors does anybody know a trick to get rid of this it reminds of the old days he he

 

Have you tried snapping your pills in half?

 

Your sunglasses are polarized, and it sounds like you have a tinted sheild also. It is doing what it is supposed to do, ie. polarize the light. Get some non polarized sunglasses.

 

darn i just bought those glasses and they are polarized if i use the wind sheild above 50 miles a hour my head shakes might get some lexan and see what i can make thanks for the replies and i will try half a pill

 

Yep mine do the same thing. It makes the windshields on cars look crazy.

 

Is this a 3/4 or FF helmet? Good FF helmets are designed for aerodynamics and won't give you that headshake.

Instead of making your own shield, just buy a non-tinted one. They aren't that expensive.

 

The windshield has created a buffetting effect causing your helmet to shake. Try putting a washer or two or six at the bottom or top windshield/bracket connection to change the wind stream. Alot of people say the buffetting comes from the wind that blasts under the windshield and adding some fork mounted or windshield mounted lowers will help.
I came across this some years ago but I don't know anyone personally who has tried 'em:
http://www.jacksflaps.com/info.html

 

Okay, first he talks about the shield on his helmet, then says something about the wind shield. Which is it?

 

Both actually...

The polarized sunglasses will create a prism-like effect when looking though a windshield or a helmet faceshield.

I made the mistake of wearing polarized glasses underneath my helmet faceshield too. Very distracting.

 

I understand that part, but is he dealing with his helmet's shield or a windshield? He isn't clear about that. His first post said that it happens when he drops the shield on his helmet. Then his second post said that when he uses his "wind shield" his head gets buffeted. That's two separate things. Then he says something about getting some Lexan. For what? A windshield or a helmet face shield?