[quote="mfzx6r"]You'll find that the more "race rep" the helmet is the noisier it gets.
with more air vents and more scoops etc its all adds to the road noise.
If you want a quiet helmet then I'd look at something less sporty
maybe go to a BMW

bike shop

Might not be very sporty but they may have just what you need.[/quote]
Actually more air vents can reduse noise, i know they are mainly for expelling air out of the helmet but they also can reduce noise by making the helmet more aerodynamic. But the main noise comes from the neck. Best to buy a helmet with more padding or denser padding as well as going out and buying neck warmer (usually used for skiing) from kathmando or something.
Then again cars are pretty quiet, not as fun though!