Tuning and modding » Aero.

So. Having fitted my Wunderlich handlebar conversion, which is awesome by the way, it introduced the issue of now having mirrors that give me a perfect view of my shoulders and nothing else.

Standard option is to space them out, however I dont like that idea as they just look weird and they are so far out on a limb that they are bound to get clattered by something.
Option b) is to mount the mirrors on the handlebars like they are on the GS, which is what I am going for. Ordered some billet brake and clutch clamps that have the mirror mount on the top of them, so thats that sorted. perfect rear vision.

What to do with the mounting points for the old mirrors? I could spend an age dismantling the front of the bike and blanking them off, then i had the amazing idea of creating some wings/strakes just like Gigi Dallignia - because I am not sure that the 340kg all in weight of the bike/rider is quite pushing the front wheel into the tarmac hard enough

Scanned the bike, design the wings in fusion 360, 3d printed in abs:


I'll get some better images once its all sorted. These are proper designed aerofoils to generate downforce. In reality I would prefer if they just directed the airflow away from my hands. I'll see how they perform and report back.

Bit early for April 1st.?

Not at all! I think they look pretty good.

I do get the fact that they will make absolutely zero difference to the dynamic of the bike, however you can say that about a lot of road bikes that now come with wings.

Point to note these were designed functionally to operate. I used an aerofoil generation extension on fusion 360 to generate the wing shape.

So although it wont make any difference at all, they will work haha

That handlebar conversion - is it higher/wider than the sport/bmw option?
Had a 1250Rs on loan while my 1200RS was getting some maintenance done and I am probably used to the standard bars, sport seat combination I've had on 2 1200RS's.
The black handlebar seemed wider for no reason and moved my wrist angle as not suitable for me on the standard heated seat.
Will need a long test ride before I update to likely R1300RS, let's hope they don't adapt to the GS vario boxes from the new GS otherwise it will add another cost to swop.

They are wide. I couldn't tell you if they are wider than the BMW version, I had heard they are identical.
Truth be told if they were an inch narrower each side Id be happy, but I'm not complaining.

It took some experimenting over a few rides, but I was able to adjust the mirrors to give an acceptable rear view after installing the Wunderlich handlebar without any other mods. I still prefer the view pre-conversion, but it will work for me.
The Wunderlich handlebars are listed as 2.5 inches wider and they are every bit of that. They are also about an inch up and back from where the stock bar is with Helibar risers. I really didn't need the extra width. They are also up and back further than the stock R handlebar. I was able to do a comparison between a stock R handlebar and the Wunderlich. The stock R bar is comparable to the stock RS handlebar with a Helibar riser installed but wider.

Frank

What's the purpose of the carbon fiber pieces on the windshield ?

when i bought the bike the previous owner have covered the lower part of the screen with stickers from places he'd been.
I removed them but they has started to eat into the acrylic of the screen. I planned on getting a new screen to replace this one, however i really like this screen and the carbon covers I made on the front dont look too bad.

Zitat von coxylaad im Beitrag #3

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Not at all! I think they look pretty good.

.....they will make absolutely zero difference to the dynamic of the bike........

......designed functionally to operate.....

....it wont make any difference at all, they will work...........

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That is an innovative solution to a problem mentioned on here before. You have some skills to be able to that. Cracking job. I like it 👌

All valid statements thanks.

As wings they will work 100%, they have been designed to generate downforce using a proper tool, and they will.

Will I feel a difference? Probably not, but, even MotoGP riders couldn't quite make their minds up whether or not they actually had much effect when they were first introduced.

Does it work with the aesthetics of the bike? - I think so but that is subjective. I think something needs to be there, not just a blank where the mirrors used to be.

That last point, bikes are an emotive thing, so the visuals of the bike are just as important, if it was all just practicalities we would all be driving cars.

Hey you never know I'll see how this go on a test, and I might redesign them so they actively redirect the airflow away from my hands, like virtual handguards. would that be acceptable?

Zitat

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That is an innovative solution to a problem mentioned on here before. You have some skills to be able to that. Cracking job. I like it 👌

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Cheers. I finalised the positioning of them last night, I can still adjust them along the axis of the mirror mount:





I was in the local dealers yesterday and they had a multistrada V4S in:




Aero. I'm fairly certain if those lower ducts fell off when you are out on a ride you wouldn't notice until you stopped. Actually if I am being critical if you are hoofing along in the rain they are just going to direct a load of road spray onto your knees

If you're interested in the topic of subsonic inlets & scoops, I would suggest S. Hoerner's "Fluid-Dynamic Drag". It's a classic reference, packed with information.

As for your wings, they should be mounted perpendicular to the local surface contour of the fairing to maximize the extent of effective wing span. If they're mounted at an angle to the fairing contour you're simply sweeping the foil which limits the span. As for purpose, are you attempting to generate downforce on the bike or blocking/deflecting flow over the hand grips?

probably more the latter.

perpendicular to the fairing? do you not mean parallel? perpendicular will them point 45 degrees up at the front?

I kind of guess the fairing underneath will have an effect on the airflow under and around the wing, however as you say, Im more interested in deflecting the wind away from my hands

Zitat von coxylaad im Beitrag #14

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probably more the latter.

perpendicular to the fairing? do you not mean parallel? perpendicular will them point 45 degrees up at the front?

I kind of guess the fairing underneath will have an effect on the airflow under and around the wing, however as you say, Im more interested in deflecting the wind away from my hands

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