Helmet noise...... - Kawasaki KLR 650 Forum
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post #1 of 19 Old 06-02-2016, 09:47 PM Thread Starter
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Helmet noise......

This conversation started in the 70 mph thread, post 37, near the bottom of the page http://www.klrforum.com/klr-other-mo...-70-mph-4.html


I have a noticeable rumbling noise in my helmet while seated and riding at highway speed. The helmet is a brandnew Shoei Hornet X2. When I stand up or even lift my butt just off the seat the noise goes away and the helmet is nearly silent. I have tried moving my head around and the noise remains fairly constant untill I lift my butt off the seat.
I suspect turbulent air off the windshield is being trapped against my front and is released when I raise my butt. I will experiment more tomorrow.
JJ
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Last edited by justjeff; 06-02-2016 at 09:57 PM.
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post #2 of 19 Old 06-02-2016, 09:59 PM
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Maybe you should get a trials bike so you don't have to sit down!! LOL.

Actually I've heard others complain about the noise level of Shoei helmets. Maybe it's a common issue.

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post #3 of 19 Old 06-02-2016, 10:14 PM Thread Starter
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Hi Nick!
Actually I did a lot of research on helmets before I made my choice and this model had very good reviews. I don't spend $700 lightly!! The telltale is how quiet it gets when the turbulent air behind the windshield is released. I have only had the helmet a few days and have just tried it on my 690. I will try the helmet on my Gen2 which has the LaminarLip on it as soon as weather permits.
Best Regards....Jeff

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post #4 of 19 Old 06-02-2016, 10:14 PM
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Jeff,

What happens when you shrug your shoulders?

I have a Shoei X-12. When I shrug my shoulders t close the space under the helmet it gets real quiet. Also, if I hold my had up under my ear it gets quiet.

I have one of those basic NOJ things (Quiet Rider Basic Helmet Skirt 129) that helps a lot. I'm thinking about making a sort of neck roll that would be build on the NOJ to see if that will quiet things down.

Tom

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post #5 of 19 Old 06-02-2016, 10:23 PM Thread Starter
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I didn't try shrugging Tom. I will though. I tried my hand all over the helmet looking for changes and didn't notice much difference. I have a taller windshield on the bike and suspect the air coming around the sides is fairly turbulent. I may remove the windshield and see what happens.
JJ

ps...The helmet has a chin skirt but not as substantial as the one you are using Tom.

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Last edited by justjeff; 06-02-2016 at 10:25 PM.
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post #6 of 19 Old 06-02-2016, 10:30 PM
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Yeah, my X-12 came with a chin skirt. I referred to it as a drool-catcher for when I was riding up and down I-5. Wasn't good for much else.

The NOJ makes getting the helmet put on a cast-iron bugger, but it's worth it for anything over 20 minutes. Pull it off before you take the helmet off, then re-install it before putting it back on.

NOJ makes some gaitered things that I've thought about trying.

Tom

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post #7 of 19 Old 06-02-2016, 10:36 PM Thread Starter
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Drool catcher!! Reminds me of riding with a cold and sneezing inside the full face with the shield closed.......eewwwwww!!
JJ

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post #8 of 19 Old 06-03-2016, 07:21 AM
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Just take the windshield off your bike for nice clean and quiet airflow over your helmet without having to stand up.

I do it every year as the temps go up in the Summer.
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post #9 of 19 Old 06-03-2016, 11:01 AM
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its definitely the windshield position/height.

on my GS the windshield is fully adjustable in height,
when i play with its height while riding, i get the same effects at certain windscreen position.

I always set it to lowest position. usually the windscreen should not go higher than your shoulders.

on my harley i dont have any of this, free airflow, no windscreen, no rumbles.

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post #10 of 19 Old 06-03-2016, 11:12 AM
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When you stand up its called "clean air". You will get that with virtually any helmet. The best remedy is ear plugs. I have found, regardless of helmet or bike, ear plugs help me hear better while riding, my com system, and greatly reduce my fatigue over a long, noisy ride. Noise in a bad helmet can reach a highly destructive 110 db. Even with plugs this is reduced by only 30db or so so still at 80db.
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