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#161 silver

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Posted 21 April 2010 - 02:37 pm

I have a Scuberth C2 and custom earplugs. I went to thruxton at the weekend and coming home i was getting more and more annoyed by the wind noise, current screen is cut to top of fairing and cut down further at a radius. Only way out of the noisy area is to sit bolt upright which is uncomfortable. The screen is raised up at the front edge by about 10mm.
I cut another radius off the top last night but havent tried it yet. I will keep going till i run out of screen.
Did about 300 miles and used .4 litre of oil, bike has 23k miles. Buying Halford oil now!
Not sure if i can live with this bike, fortunately i still have the TRX.
Dave
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#162 mecrox

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Posted 21 April 2010 - 03:25 pm

I bit the bullet recently and bought a +143mm Yam touring screen for my 9er. It's better than the MRA Vario though it doesn't eliminate the problem, just reduces it. I guess this is all down to how tall you are and therefore where the wind hits your body and helmet. The taller you are, the less effective these larger screens are going to be because the wind off the top just slams around your helmet rather than over it. I have an old stock screen I plan to cut down, but I'm not so keen on less weather protection given the English climate.

#163 TimH

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Posted 22 April 2010 - 09:29 pm

QUOTE(graeme @ Sun 18th Apr 2010, 09:09 PM) <{POST_SNAPBACK}>
Hi Tim, Know what you mean about the helmet noise, my older Nolan is just plain noisy and i am sure a better one will help (just cant decide). But the airflow off the screen needs to be at bottom of helmet, or a bit below, else you are right in the noisy air. So the double bubble pushes the air a bit higher because of the shape and pushes it more to the side as well. Nonetheless, because it pushes it up, any cut down has to be greater to take airflow down far enough and that leads to a deep cut. I want to keep my standard screen intact also, cut the vario down because it was useless anyway, but what a waste of money. Also the vario is not very flat. The earlier TDM's, like Geordie Guys, have a recess in the middle that i imagine gives a great result with minimal cut down? The last cut on my vario was to take it a bit lower but shaping it to retain protection of the sides of the fairing which i also thought helped avoid the "look" of being overcut, personal thing there. It works pretty well but have looked for flat(ter) screens to modify and think the best so far are the Skidmarx replacement standards. Still 100 bucks in Aus so havent rushed out, but does anyone know of flatter or ideally recessed screens like the MK2 for later models?
cheers Graeme

I agree with you Graeme, a flat screen would probably be better to cut down than the bubble. I had to go too far to be happy even with my stock screen, although I liked the look of yours - I just don't have any artistic talent whatsoever and made a mess of the shape and location of the cuts....

After doing a few thousand ks with the cut down screen, I can say the noise I was still getting was coming from the sides of the base of my helmet. There were two streams of air hitting right below my ears. I reckon this was coming off the fairing, not the screen (or edges of the screen anyway), so unless the fairing is modified I'll never get rid of it. But adding a windjammer to my helmet made it very pleasant to ride (and I could clearly hear the music at normal volumes from my noise isolating earphones), which is why I'm hoping a better designed helmet will have a similar effect to the windjammer and problem will be solved.

I'd like to graft a fairing off another bike onto the tdm and see how it turned out, but don't have the time, money or crafting skills (wish Yamaha would do it). So for now I'll keep riding what I believe is a fantastic bike, and put up with a little wind noise on the open road.

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Posted 23 April 2010 - 11:14 am

QUOTE(silver @ Thu 22nd Apr 2010, 12:37 AM) <{POST_SNAPBACK}>
I have a Scuberth C2 and custom earplugs. I went to thruxton at the weekend and coming home i was getting more and more annoyed by the wind noise, current screen is cut to top of fairing and cut down further at a radius. Only way out of the noisy area is to sit bolt upright which is uncomfortable. The screen is raised up at the front edge by about 10mm.
I cut another radius off the top last night but havent tried it yet. I will keep going till i run out of screen.
Did about 300 miles and used .4 litre of oil, bike has 23k miles. Buying Halford oil now!
Not sure if i can live with this bike, fortunately i still have the TRX.
Dave


Hi Dave, from what you say about having to sit up straight you are close to having it right. You have the flatter standard screen as well. If i slump a little bit the noise starts to reappear and i am cut right down. Think of it as a way to improve posture!
cheers Graeme

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Posted 23 April 2010 - 11:27 am

QUOTE(cypher @ Fri 23rd Apr 2010, 07:29 AM) <{POST_SNAPBACK}>
I agree with you Graeme, a flat screen would probably be better to cut down than the bubble. I had to go too far to be happy even with my stock screen, although I liked the look of yours - I just don't have any artistic talent whatsoever and made a mess of the shape and location of the cuts....

After doing a few thousand ks with the cut down screen, I can say the noise I was still getting was coming from the sides of the base of my helmet. There were two streams of air hitting right below my ears. I reckon this was coming off the fairing, not the screen (or edges of the screen anyway), so unless the fairing is modified I'll never get rid of it. But adding a windjammer to my helmet made it very pleasant to ride (and I could clearly hear the music at normal volumes from my noise isolating earphones), which is why I'm hoping a better designed helmet will have a similar effect to the windjammer and problem will be solved.

I'd like to graft a fairing off another bike onto the tdm and see how it turned out, but don't have the time, money or crafting skills (wish Yamaha would do it). So for now I'll keep riding what I believe is a fantastic bike, and put up with a little wind noise on the open road.


Hi Cypher, if I get another (flatter) to try, i'll send you the current one. Have been tempted by the windjammer. As the review of the product says, there is dirty air around the neck / shoulder area . In our case we caused it by moving the airflow down that far by cutting the screen. Just leaving the top velcro on the jacket undone will create a lot of noise and i know that the leather jacket has a crease on the left side that makes noise just on that side. So it is a combination of things. How do you find the windjammer for fogging or stuffy air inside the helmet?
cheers Graeme

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Posted 23 April 2010 - 11:34 am

QUOTE(mecrox @ Thu 22nd Apr 2010, 01:25 AM) <{POST_SNAPBACK}>
I bit the bullet recently and bought a +143mm Yam touring screen for my 9er. It's better than the MRA Vario though it doesn't eliminate the problem, just reduces it. I guess this is all down to how tall you are and therefore where the wind hits your body and helmet. The taller you are, the less effective these larger screens are going to be because the wind off the top just slams around your helmet rather than over it. I have an old stock screen I plan to cut down, but I'm not so keen on less weather protection given the English climate.


Hi Mecrox, from what i understand it to be the weather must be an absolute bastard to ride in. You could emigate to Australia or maybe one of the "Tiger" screens would help?
cheers Graeme

#167 Retro

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Posted 23 April 2010 - 01:08 pm

QUOTE(mecrox @ Wed 21st Apr 2010, 04:25 PM) <{POST_SNAPBACK}>
I bit the bullet recently and bought a +143mm Yam touring screen for my 9er.


Me too..I could live with the helmet buffetting but the noise was unbearable, went back to the standard screen

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#168 Geordie Guy

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Posted 25 April 2010 - 10:44 am

QUOTE(cypher @ Tue 13th Apr 2010, 12:10 PM) <{POST_SNAPBACK}>
I'm actually a little embarrassed to admit it, but after cutting mine down (which fixed the buffeting btw) but not liking the look, I bought one of these on ebay



Cheap and nasty, it fits poorly, there are areas of distortion from sloppy moulding, don't know what it's made of, hope never to hit it at speed with any body-part....


edit: looks like this on the bike




Hi, this is now in the country

My review, It does throw the slip stream high so it does work. But not for me, I have a long body and short arse legs.

and so if anyone fancies a go, it in the for sale section.

Cheers, Ivan
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#169 mecrox

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Posted 25 April 2010 - 04:36 pm

QUOTE(graeme @ Fri 23rd Apr 2010, 12:34 PM) <{POST_SNAPBACK}>
Hi Mecrox, from what i understand it to be the weather must be an absolute bastard to ride in. You could emigate to Australia or maybe one of the "Tiger" screens would help?
cheers Graeme


Lol, yes it can be spectacular in a fresh breeze with plenty of rain. Actually I think I'm now fairly sorted with the Yammy touring screen. Definitely an improvement on the MRA Vario for my height and generally it's adding ten to things - i.e 70 now feels like 60 did with the Vario, 80 feels like 70, etc - and with a bit less buffeting. I'm sure the Tiger screen is the #1 answer but the Yammy screen could be ordered from just down the road, so a simple job. Generally the bike feels more planted and is an easier ride. Next up is a custom zorst, I think. Perhaps Fuel as they are affordable.


#170 TimH

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Posted 26 April 2010 - 05:05 am

QUOTE(Geordie Guy @ Sun 25th Apr 2010, 08:44 PM) <{POST_SNAPBACK}>
Hi, this is now in the country

My review, It does throw the slip stream high so it does work. But not for me, I have a long body and short arse legs.

and so if anyone fancies a go, it in the for sale section.

Cheers, Ivan


I went for a good ride yesterday with my cheapie db screen, and was surprised a few times when I looked at the speedo.... 150ish on the old screen would have been knocking me around a bit, seemed relatively smooth (though not perfect) with this screen. Body shape has a bit to do with it I expect, I think I have long legs/arms but short torso, so for my 5'11" I'm possibly sitting lower than others.

Graeme, re Windjammer - I rode through the Vic high country last December, Omeo, Jindabyne, Tallangata etc, had some cold and wet weather, but didn't experience any fogging. It might be different in slow commuting though, it does restrict airflow into the helmet. I haven't used it on really hot days, but it would make the helmet hotter for sure. I can't get my Camelback mouthpiece in with it on, so for really hot days I can't use it anyway.

Your notes on jacket collars affecting helmet noise were spot on - my Dririder Airflow jacket is quieter than my Dririder Alpine, probably due to the shorter collar. Put a neck warmer over the Alpine jacket though and it's nice and quiet, especially with the Windjammer. Not an option in summer though.


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