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Post by keltex78 on Aug 23, 2013 15:03:25 GMT -5
Riding my MC-54 type scooter: I notice that I get a lot of wind noise from my helmet while riding. It seems that the windshield is at the height where my head is right in the turbulance from the displaced air. When I hold my head up higher, it gets significantly quieter. I am curious if cutting down my windshield a few inches would make the ride quieter.
Has anyone ever cut their windshield down to reduce the buffeting and turbulance at helmet-level?
My helmet is the HJC CS-R2 which most reviews rate good for wind noise...
Okay... A lot of threads on installing a larger windshield... I think I may look for a good deal on a new piece of plexi and cut my own, using the factory shield as a template. Then I can cut it down to a sport-sized shield or try different heights....
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Post by shalomrider on Aug 23, 2013 19:14:17 GMT -5
howdy, yes, wind noise seems to be a factor on anything i rode. i put a laminar-lip on my bv350 and it seemed to do nothing to help the noise or buffeting. lotsa luck(and it may take that) on getting the right combo.
i s'pose i could try raising my laminar lip but hate to dismount the velcro tabs for fear i can't get it to stick higher up. can anyone tell me if the mounting buttons that come pre-attached to the laminar lip are in fact velcro that can be separated then re-attached..
lotsa miles and smiles to ya
ken
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Post by novaraptor on Aug 24, 2013 10:21:31 GMT -5
I made my own windscreens after the original was broken by a thief.
One is a tall for winter riding and one is a small sport shield for the summer when I want max air flow. For best results use Lexan instead of Plex. Plex will shatter and leave sharp edges and points. Lexan will bend, in fact can be bent and creased like metal.
The laminar lip doesn't use velcro. It uses 3m Duel Lock. If you are careful it can be taken apart and repositioned. It is like velcros big brother on steroids, but isn't really designed for multiple use..
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Post by novaraptor on Aug 24, 2013 10:27:12 GMT -5
another thought.. cut a lexan strip about 4 inches wide and 12 to 15 inches long and use some double stick to attach it to your windscreen. you can move it up an inch at a time to see how the wind flow changes
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Post by trailheadmike on Aug 24, 2013 12:00:02 GMT -5
Novaraptor beat me to it. I changed my stock short shield to a tall Givi and I heard all sorts of engine and other bike noises that had always been drowned out by the wind. When researching my windshield I recall reading a lot about people who made or even purchased commercially available windshield extenders. I'll check my old bookmarks and see if I saved anything and I'll post again if I did. Seems like a reasonably priced solution.
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Post by trailheadmike on Aug 24, 2013 12:06:24 GMT -5
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Post by prodigit on Aug 24, 2013 14:25:44 GMT -5
When you cut or remove the windshield, more wind will go on your chest, and less wind gets focused on your helmet (as a windshield basically pushes the wind that supposed to be hitting your chest, to the sides, and upwards, towards your helmet).
So yes, it might decrease noise.
On the other hand, removing it, you might become aware of other wind noises, as the wind will hit the helmet from different angles.
I would not cut the shield, but remove it first, and see how it performs.
If it's truly better, then try cutting it but it might be best to just remove it, or buy another helmet that makes less wind noise.
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Post by JR on Aug 25, 2013 9:02:35 GMT -5
You can search and still find a vendor here and there that has the tall Givi windshield for the Honda Reflex and by going just a couple of inches taller not only will it cut the noise but stop those bugs from splattering on your helmet.
I think the windshield has been discontinued by Givi but again there are a few out there that still have one in stock.
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Post by alleyoop on Aug 25, 2013 12:53:05 GMT -5
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Post by keltex78 on Aug 26, 2013 13:54:17 GMT -5
I took the windshield off over the weekend and went for a little drive around the area. Removing the shield really does help reduce helmet wind noise, and is generally nicer and smoother up until about 50mph. Anything over 50 and I get too much wind buffeting/pressure on my chest/arms. Also, my shirt collar starts flapping at those speeds and gets pretty annoying. I can tell that my helmet (HJC described it as wind-tunnel designed) is very nice and you can tell that it's cutting through the wind very smoothly. The wind noise with the windshield on the bike is a roar due to the turbulance but without the shield, it becomes a much more subdued "whoosh" type of sound.
I'm really liking the idea of cutting my own windshield so I'm going to look for a good deal on a piece of 1/8" lexan to cut my own.
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Post by gregw on Aug 27, 2013 17:11:12 GMT -5
I, just today, took a torch and heated up my windshield in the middle and put a slight bend in it to raise the top of it, in order to allow the rush of wind pressure hitting my helmet, to go over my helmet (or at least hit the top of my helmet, not the whole thing), yet still allow me to see over the top of the windshield. I certainly appreciate a taller windshield on longer rides...
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Post by gregw on Aug 27, 2013 17:27:08 GMT -5
 After  Before |
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Post by prodigit on Aug 27, 2013 19:39:00 GMT -5
Nice,
Perhaps you could find some rubber pieces to mount under it at the top, to tilt it a bit more (mounting it under an angle)?
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Post by Deleted on Aug 27, 2013 20:50:07 GMT -5
That shiels is not near high enough to block facial wind. Mine is even with my chin.
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Post by gregw on Aug 29, 2013 15:30:33 GMT -5
It was even with my chin, now it's even with my nose, and the wind noise against my helmet is greatly reduced (I can hear the motor purring along now, couldn't before). In my case, it was the perfect and easy fix to the noise.
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..BAD TO THE BONE..
