KTM screens

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aurelia
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I have recently bought a KTM SMT having finally let go of my GSXR1000R due to poor roads and other reasons. I have ridden KTM's in the past and noticed that the screens always seemed to push the wind into odd places. When I test drove the bike I played around with the standard screen and the high rise screen. Neither of these screens work well and I am well; surprised that KTM have not fully tested out rider and wind resistance better. The GSX with a double bubble worked very well and I have not noticed such issues with other bikes.
The wind is directed at the centre or top of my helmet causing wind noise. With a passenger I get the 'nodding dog' syndrome unless the passenger hunkers down and of to one side. Does anyone know of an after market screen for the SMT as the standard is non adjustable.

Aurelia

kevash
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Re: KTM screens

The kind of thing you're talking about isn't restricted to KTM, it seems that the more upright a bike's screen is, the more the problems with turbulence, that nodding dog problem and so on. Usually the aftermarket promises more than it delivers, the companies involved have much smaller resources to do proper testing than the main manufacturers. But now and then something pops up which works better than the factory original, maybe someone here has experience of it.

vroum_ninou
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Re: KTM screens

As witnessed in the looooong MTS 1200 thread, screen efficiency is highly personal. It depends on the height of your torso and where you sit on the bike and how you sit on the bike.
I personally find the SMT screen absolutely fine. I mean, it's no R1200RT screen, or even an R1200GS screen, yet it is fine for me. I actually prefer it to the R1200RT, as surprising as this may sound! The RT's screen is extremely noisy in its lower position. The more you raise it, the less noise there is... but you end up having to look through it if you want an acceptable level of noise and I really don't like having to look though a screen. It kind of distorts the view. Moreover, when in its high position I get a pushing force on the back of my head. Most unpleasant.

On the SMT there is turbulence in the shoulder and neck area, but the head is fine. I avoid highways like the plague, yet I can cruise on them with the SMT very decently at good speeds (up to 100 mph without any problem).

I noticed once or twice the "nodding dog" issue you mention when carrying a passenger, but this would happen only for a very specific position of the passenger that could be very easily altered. It probably depends on the passenger's torso height as well.

Anyway, Silvercub, a most respected contributor of this site, has had an SMT for 2 or 3 months now and had a few issues with the screen (head buffeting). He apparently solved it by making the stock screen shorter. He'll probably come here and give more details himself.

How do you like the SMT? I come from sport bikes too (R1, Gixxer 1000...) and the SMT is the best road bike I have ever owned. Mine is undergoing its 30,000 miles maintenance right now.

Captain Scarlet
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Re: KTM screens

"He apparently solved it by making the stock screen shorter"
... I've owned four adventure bike and for me personally, having tried various taller screens first, I too prefer smaller (than stock) sporty screens. You do get more wind pressure, but less buffeting. Depends on expectations really. Up to 60 mph I prefer un-faired bikes. 60-90 a small sporty screen. Above 90 a large screen or prone riding position. For my own needs (50-90 everywhere) bikes like the Speed Triple (with sporty nose-cone fitted) and the Tiger 800 work pretty well. I found the SMT okay to about 75-80 mph for my 6ft 2", but above that will get tiring. But as Kev mentions vertical screens and riders don't help. My SRR was great to ahem speeds. But once fitted with AC Schnitzer streetfighter bars (to give previously broken wrists an easier time) it was rubbish over 90 - nothing better below it mind! :-D It's the flip-side of having comfort and fun at double-digit speeds. Only.

silvercub
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Re: KTM screens

Thanks ninou for handing me the poisoned chalice!

To address this problem fully would involve pages of text, the loss of any shred of respect I might otherwise have garnered on this site plus the necessity to adopt a degree of logic, conspicuously absent in my other posts.

Most of the donkey work has been done on the M*lt#str~d~ thread; it's very much a case of too many variables to get one satisfactory answer. The odd drifting organism (they don't get much odder than a plankton) has offered some kelp in the shape of a new and improved vario screen.

Here are a few pointers, based on my SMT experience.

The standard screen aimed the airflow at the bottom of my visor, around the venting system. Bad reverb, man. By raising my upper body slightly on the footpegs, I found a position where the noise abated which for me was approx 25mm bum off the seat. The airflow now hit my neck.

I decided to lop 25mm off the screen. As an insurance policy, I ordered the Givi touring screen from these guys http://www.cmcbikes.com/givi-screen-ktm-990-smt-09.html
Not much outlay and I could evaluate/modify this too, if the need arose. I also ran a semi-scientific test with standard, touring and no screen. As the Captain say, the lower the 'screen', the cleaner the air (actually, the SMT looks quite good naked).

Out came the sticky tape and Dremmel. To my amazement, I made a half-decent job of it! Fingers crossed, I hopped on and nipped down the test track. A significant improvement.

Whilst the stock screen was on the workbench, I took my pillion of choice out with the Givi in place. The airflow was now directed to the top of the helmet, so quieter than stock but (surprise, surprise!) increased turbulence for rider and pillion.

Some general observations:
*The SMT does seem to be prone to buffeting in crosswinds.
*You could try the spoiler option, such as this Touratech one - http://www.touratech.com/shops/008/product_info.php?products_id=6609&osC...
*I believe Puig makes a shortie screen too but haven't found any pics
*I suspect that the handguards also contribute to dirty air but haven't tested this yet
*If you want to carry out a bit more exploratory work on the move, loose textile gloves are quite useful in evaluating airflow
*How much 'playing around' are you prepared for?

It would be interesting to hear from other SMTers.

patrick916
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Re: KTM screens

I agree with ninou, screen efficiency is highly personal. Overall height, torso height, general stance at the handlebars, perhaps even helmet type, can all affect screen performance.

I bought an SMT in May and have done just over 4000 miles including an Alpine tour. Again, like ninou, I find that there is occasional turbulence around the shoulders but I have yet to experience any buffeting around the head.

I too have a sportsbike background and find that the SMT is extremely comfortable generally, especially with regard to the reach to the bars and the width of the bars themselves. I am 5' 8" tall and tend to adopt an arms slightly bent, 'Ready To Race' riding stance.

It would take a tremendous amount of buffeting for me to fit the aesthetic carbuncle that is the SMT touring screen.

Captain Scarlet
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Re: KTM screens

"I suspect that the handguards also contribute to dirty air but haven't tested this yet"
... this is a good point, that I've never heard mentioned before.

I think it's good because a few weeks back I rode a Tiger 800 and last week I rode a Tiger 800 XC. The XC has slightly wider bars (2.5"?) and come back towards the rider a smidgeon to. And there's a slight difference in seat height between the two models too. But otherwise the ergo's are exactly the same, except the XC has hand-guards.

I didn't notice any buffeting on the stock bike until beyond 80 mph, but I did notice it above 60 mph on the XC - still comfortable up to about 90 mph. It's difficult to gauge how much this was down to the fact that it was slightly breezier the day I rode the XC and the dimensions are very slightly different between the two variants, but the extra turbulence could well have been down to the hand-guards causing dirty air as they are not particularly streamline looking to me?

roundincircles
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Re: KTM screens

On the MTS both the mirrors and hand-guards, which are in close proximity, contribute at speed to air turbulence plus force the screen to be narrow.

Poucher
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Re: KTM screens

Had similar problems on my SMT, take a look at this thread, all my details and pics in here :-

http://www.ktmsmt.com/viewtopic.php?f=8&t=3251

Cheers,

Poucher

Podman
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Re: KTM screens

Poucher wrote:
Had similar problems on my SMT, take a look at this thread, all my details and pics in here :-

Did the same to my SMT and do like it better then stock. Have the TWS for when I do a really long trip although I could do long trips with this WS. Great bike by the way and can't understand what took me so long.

Plankton Pete
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Re: KTM screens

Poucher wrote:
Had similar problems on my SMT, take a look at this thread, all my details and pics in here :-
Poucher

Noooo, don't give up Col, or next you'll be hankering after a Multistrada .....

P

Poucher
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Re: KTM screens

Nahh,its sorted now Pete, did you not read to the end of the thread?

Quite enjoy the problem solving and tweaking the bike to get things just perfect, I suppose its the engineer in me coming out, I just won't let things beat me.

Weather forecast here is great for the weekend so I can see a few good rides coming up!!

silvercub
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Re: KTM screens

Nice work Poucher,

There's obviously more to you than the shades and flared nostrils suggest!
Your handguards look smart too and obviously more aerodynamic than the mutant chemical containers KTM see fit to supply as standard. Details etc. appreciated.
It's not just the touring screen that's a carbuncle, patrick916!

I'm off for a Welsh tour this weekend, so will have a chance to test with the guards off. Otherwise the mods are working well.

I've also finally succumbed to a Scottoiler, in readiness for winter. Shuggie's softly softly approach has won me over!

Poucher
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Re: KTM screens

Hi Silvercub

The pic in my avatar is of my last dog, Buster, sadly no longer with us.
As you can see from this pic he was a quite a large rascal, just short of 10 stones in weight ( 63 kgs ) he was a Rhodesian Ridgeback, but a big one, they don't seem to breed them as big these days, the collar around his neck was the biggest one pets at home had in stock 23", and it just say fitted him on the last hole in the collar.
Also as you can see, my mates wife was not too impressed when he wanted to sit with them on the sofa, talk about "a rose between two thorns" eh?

The ktmsmt website appears to have gone a bit "pete tong" so the link to the screen changes isn't working anymore, I'll give it a day or so and if its not back up I'll re-load the pics onto here, but I'm struggling a bit with that as the upload procedure on this site seems a bit different to others I've used before.

buster.JPG
silvercub
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Re: KTM screens

It's okay Poucher, I did read to the end of the thread on the ktmsmt site.

Did you modify the handguards yourself or are they aftermarket jobbies?

It's strange that this site includes gratuitous pictures of our canine chums from time to time. Buster, however, is the Daddy. Did he ever pillion?

Poucher
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Re: KTM screens

Hi Silvercub,

The handguards are KTM ones, I think these are the ones :-

http://www.ktmcyclehutt.com/ktm-parts/ktm-parts.php?sku=7800297900028&ti...

I'll check the part number for you as I still have the package somewhere, they are not specific for the SMT ( I think they are listed for the 690 or something ) but they fit the SMT no problem.

Buster never made the pillion of the motorbike, but when I used to ride my mountainbike around the back garden he enjoyed chasing me on that, he couldn't resist a moving target!!

Poucher
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Re: KTM screens

Hi Silvercub,

Just checked the part no on the actual handguards last night and it reads :-

780 02 980 000

You can get these handguards in two widths, narrow or wide, these are the wide ones I think.

silvercub
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Re: KTM screens

Thanks for that Poucher.

I think I may be going down the same route as you with the stock screen. Verdict after the Welsh trip = much better, although not yet perfect.

silvercub
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Re: KTM screens

Roundincircles, the urbane motorcyclist. I have a question.

In your quest for the sublime screen I believe you tested, amongst others, Palmer Products' adjustable jobbie. Any joy? Did you acquire the smoky screen also, perchance?

I ask as kit & caboodle now available for the SMT and I thought I might give it a whirl.

For the benefit of the KTM collective, I have fitted the rather good Givi touring screen for winter riding. By getting into a crouch (sounds dirty that) I can bask in clean air and avoid excessive salt spray on visor. Good but still not perfick. A bit of adjustability and greater offset from fairing could tip it!

Any thoughts, experience, speculation even, appreciated. Experience always best!

pittsy
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Re: KTM screens

Silvercub said: "Any thoughts, experience, speculation even, appreciated"

Mainly speculation, but a little experience also.

Would moving the screen forwards help?

Would devising two screens superimposed on top of each other, with a gap up the middle, help? Like a vario, but more of it.

Maybe best not to try this at home!

It's obvious that a very tall, upright screen would give a quiet ride, but the pay off is naff visibility and almost guaranteed bike stability problems at speed.

Everything is a trade off, so maybe the problem is insurmountable for fast, tall bikes and upright stance?

roundincircles
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Re: KTM screens

silvercub wrote:
Roundincircles, the urbane motorcyclist. I have a question.

In your quest for the sublime screen I believe you tested, amongst others, Palmer Products' adjustable jobbie. Any joy? Did you acquire the smoky screen also, perchance?

I ask as kit & caboodle now available for the SMT and I thought I might give it a whirl.

For the benefit of the KTM collective, I have fitted the rather good Givi touring screen for winter riding. By getting into a crouch (sounds dirty that) I can bask in clean air and avoid excessive salt spray on visor. Good but still not perfick. A bit of adjustability and greater offset from fairing could tip it!

Any thoughts, experience, speculation even, appreciated. Experience always best!

I currently use the Palmer adjustable spacer thingy on my MTS with a MRS screen as the Palmer screen cracked after being hit by a 100mph rock. I went to Palmer and tested his products on my bike so I had a direct comparison. He fitted the bits and is located in Braintree, Essex 20 minutes from Stanstead.

I'm reticent to recommend because it's about your ergo's and cruising speed. I can say that at low speeds there is improvement over stock but the MTS has poor air flow at speed because it has Donny Darko mirrors and separate hand guards / indicators that cause swirl.

So try before you buy is my 10 penarth. It is an excuse for a weekend blast.

silvercub
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Re: KTM screens

Thanks muchly (or should that be mutley) RiC,

I do like the Donny Darko reference. SMT ones are insect-like, with chemical containers for handguards (unless your name is Poucher!).

Looks like it's a trip to Braintree then. Must remember to bring back exotic marmalade, in lieu of shoes!

'Cub

Scutty
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Re: KTM screens

Now I have shifted to the 'Orange-side' I wanted to chip in with my opinion. Only about 500 miles on my SMT so far but I am loving the Givi screen. The standard isn't too bad but the touring one was rubbish. I have swapped out my handguards as well which my also be helping but, for now, I am sticking with the Givi screen.

2012-04-24 12.09.15.jpg
silvercub
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Re: KTM screens

Hi Scutty and welcome to the side that is orange but where the bikes seem mainly to be white. Ninou's colour scheme is best in my opinion but I wouldn't mind experimenting one day with the matt orange of the Superduke....

Anyway, screens. Yes, I too was happy with the Givi but needed to tuck in a bit to get into clean air, which could be tiring on long & cold journeys. On RiC's suggestion, I tried and have now fitted the Palmer spacer + screen, details of which can be seen here: http://www.palmerproducts.co.uk/ Go to 'Accessories' & select model.
I've been using it for 2.5 months on a regular commute in all weathers.

Pluses:

*Adjustability
*Sets screen forward
*Screen provides cleaner air flow
*Well constructed, simple to fit and remove
*Easier to clean than OE
*Allows fitment of accessory bar (if you insist on attaching gizmos/shaking cocktails)

Minuses:

*Rain seems to be driven upwards & behind helmet visor, unless closing mechanism provides a tight seal (tho' Palmer Products will supply for modest cost an adjustable baffle, which I intend to put to the test shortly)
*Raindrops (keep falling on my head) not so easily cleared from visor using airflow alone
*Some may consider it a tad ugly (I quite like the look of the tinted screen and offset position) but it is certainly less of a 'carbuncle' than KTM's offering

Your handguards are a huge improvement on the stock bins. Do they help deflect cold air & rain from your gloves?

Scutty
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Re: KTM screens

Silvercub

The hand-guards certainly keep my hands dry and I believe they reduce helmet noise a little too. I am going to put bar-end mirrors on when I can find some slightly longer bolts - I have used the bar-ends with these hand-guards before and they work really well. Will post pics when its done.