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Old 11-30-2011, 11:57 AM   #121
RACER X
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former MSF inst. and i disagree w/ alot of what he said. not all but alot.

my ARAI RX7-RR4 basically a $800 helmet was loud as all get out.......vs "A good helmet blocks wind noise and can actually help you hear better, "

and that just for starters.

i agree w/ this

"If anyone here thinks that gear is anything but secondary protection then you can stop that right here."
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Old 11-30-2011, 12:10 PM   #122
da1hobo
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Quote:
Originally Posted by RACER X View Post
former MSF inst. and i disagree w/ alot of what he said. not all but alot.

my ARAI RX7-RR4 basically a $800 helmet was loud as all get out.......vs "A good helmet blocks wind noise and can actually help you hear better, "

and that just for starters.

i agree w/ this

"If anyone here thinks that gear is anything but secondary protection then you can stop that right here."
Yeah the helmet hearing thing is always a great argument starter. He showed us a study from a wind tunnel where someone with a helmet could better identify sounds than a helmet-less rider. Something about moving the wind rushing by your ears further away creates a diminished effect of wind noise. I'll see if I can't find the study. Also just because a helmet is expensive doesn't mean its good or quiet.
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Old 11-30-2011, 12:40 PM   #123
RACER X
what R you lookin' at?
 
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Join Date: Apr 2005
Location: Richmond, Tx
Feedback Rating: (26)
Posts: 33,503

Experience: 10+ years
Trackdays: 8

Bike(s):
'14 Honda GROM! 181cc of fury!!
'10 Aprilia Tuono Factory-SOLD
'08 Busa - sold
A few more bought
A few more sold






something to read also

http://www.cyrilhuzeblog.com/2011/07...-hearing-loss/

Are Motorcycle Helmets Responsible For Hearing Loss?

New twist in the debate regarding motorcycling with or without helmets. Not about freedom of choice, not about health and safety benefits, not about DOT etc…

New studies published in The Journal Of The Acoustical Society Of America warn that if helmets can protect your brain they can also largely contribute to hearing loss.

Results show that the biggest and most dangerous source of noise is not the roar of your engine, but your helmet acting as a special air filter attenuating noise in the region above 500 Hz and amplifying noise in the regions below 500 Hz. Even at legal speeds, the sound of air rushing in areas underneath the helmet and near the chin bar can exceed safe levels.
For demonstration purpose, scientists placed motorcycles helmets atop mannequin heads, mounted them in a wind tunnel, and turned on the fans. By placing microphones at different locations around the helmet and at the mannequin’s ear, the researchers found that is a significant source of the noise that reaches riders” sensitive eardrums. It is the 1st time that the acoustic effect of helmets has been reported. These findings may incite or oblige, if governments get involved, helmet manufacturers to design quieter helmets and use the “riders’ ears protection” as a new marketing tool.
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