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Old 12-12-2012, 10:28 PM   #28
braaap!
waiting for the big one
 
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Joined: Mar 2005
Location: Melbourne
Oddometer: 2,318
Haven't heard whether you're using earplugs... Maybe that's the answer, or maybe you simply have a bad case of tinnitus from not using earplugs?

My XD4 whistles only if I crank my head back and look at the sky... Aerodynamics at play, the helmet is not at fault... Seek a solution grasshopper, your head is worth much more than 800 bucks.
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