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Hi guys,

I was thinking about installing some wings on my MS1200s like the ones from the Panigale V4.

It’s just aesthetics but I was also thinking if this could change the behavior of the front wheel at high speed turns.

What do you think?

 

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With zero technical and physics knowledge, I’d say the effect would be negligible to either side (better/worse). In my opinion (again without any technical, empirical or educated basis) in the Multi there are several other factors in play when in high speeds that would overcome whatever effect these wings could bring.

The Panigale is an aerodynamic monster with its super sleek design, inclined and small windscreen, farings and a tucked riding position. The Multi is an aerodynamic terror with a very tall front and ground clearance, tall and vertical windscreen, erect riding posture, wide handlebars, etc.

Making a rough comparison is like putting a rear wing on a SUV or a pickup truck. Won’t help, but won’t make it worse.

Now for the proper specialists opinions!
 

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First... even the Pani needs to be going well into triple digits to create substantial downforce... (60lbs of force but at 170mph! and force drops with the square of the speed so at 85mph it's not half or 30lbs... it's more like 7 lbs... I can generate more downforce than that at 85mph by eating at Moe's before riding. Winglets are really a track thing even on the Pani.

Next... If you have enough surface area to create significant downforce then you'll have a problem with them deflecting and bending your bodywork unless they're mounted through the plastic panels to something rigid.

So IMO... if you're looking for bling then go for it (lots of aftermarket winglets out there now)... but you're not really going to get any functionality out of them (which is OK)
 

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Winglets are useless even on a Panigale unless you travel at MotoGP velocity.
They're even more useless on the a naked bike such as the Streetfighter V4 which will flatten your face at any speed above 120 mph. ...And you don't need 208 hp to get there either as a 150 HP Monster will easily reach 145 mph at which speed the winglets won't do much. It's just a fad that will dissipate eventually. IMHO, winglets are just another piece of plastic that can break-off.
 
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I cannot even imagine going fast enough on a naked or ADV bike to make winglets matter. I went about 135 on a Diavel once and the wind on my helmet was enough to push the face shield into contact with my nose. 150+? That's gonna be a no for me, dog.
 

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So if he angled them up, what do you think take-off speed would be? ;)
 

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I cannot even imagine going fast enough on a naked or ADV bike to make winglets matter. I went about 135 on a Diavel once and the wind on my helmet was enough to push the face shield into contact with my nose. 150+? That's gonna be a no for me, dog.
Lol what kind of garbage helmet were you wearing? I had my S1000R over 150mph without any issues.
 

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Shoei GT-Air. It fit right, too. Just a lot of air pressure. IIRC it was fairly new at the time, so the pads wouldn't have been worn out.
 

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That's insane... very odd. You're right that there's a heck of a lot of wind pressure at those speeds, but I would never have thought your helmet would change "attitude" on your head because of it.
 

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I've had helmets with tired foam push toward my face at highish speed (not that I ever exceed the legal speed limit... no sir officer!)... I took it as an indicator that my helmet needed a refurb and bought new inserts.
 

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First... even the Pani needs to be going well into triple digits to create substantial downforce... (60lbs of force but at 170mph! and force drops with the square of the speed so at 85mph it's not half or 30lbs... it's more like 7 lbs... I can generate more downforce than that at 85mph by eating at Moe's before riding. Winglets are really a track thing even on the Pani.

Next... If you have enough surface area to create significant downforce then you'll have a problem with them deflecting and bending your bodywork unless they're mounted through the plastic panels to something rigid.

So IMO... if you're looking for bling then go for it (lots of aftermarket winglets out there now)... but you're not really going to get any functionality out of them (which is OK)
I agree 100% with this post...(except the math).

Given force drops with the square of the speed then f(v) ~ K(v^2) where K is some constant.

If we take f(v) = 60lbs @ v=170...wouldn't f(0.5v) = 0.25*f(v) = 15 lbs 🤪

Point is, wings are useless whether its 7lbs or 15lbs.

*disclaimer: COVID is making me a bigger PITA than usual
 

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Slowdive: You've neglected to account for the rotation of the Earth, the phase of the Moon, altitude and ambient air temperature thus air density and most critical, the impact of passing over ley lines while riding.
 

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I agree with other responders that attaching the wings to the bodywork could create other structural issues to the bodywork, and may not have the desired effect you have in mind given the limited downforce offered at the speeds you will be riding at. My suggestion is to install the wings on a helmet instead , which would apply the 15lbs of downforce (thanks @Slowdive for the accurate math) on your head, thereby making your body position more aerodynamic and putting more weight over the front wheel. It would also serve as a safety mechanism to slow your fall if you ever highside...



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My suggestion is to install the wings on a helmet instead , which would apply the 15lbs of downforce ...

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Boom! There it is. 15 lbs is more than enough to keep the face shield off your schnoz.
 

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Back in the day the old original Bell Star had so much lift that at 100 mph the strap would strangle you. I can remember I would have to open mouth as wide as I could to pull the helmet down so I could see where I was going.

True story! :)


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Back in the day the old original Bell Star had so much lift that at 100 mph the strap would strangle you. I can remember I would have to open mouth as wide as I could to pull the helmet down so I could see where I was going.

True story! :)

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My first motorcycle was Honda Sabre (Harley Replica). I thought it would be cool to get a half helmet that was prob 1/2 a size too big. First time I got on the highway I damn near choked myself out.

BTW, it looks like the OP made this one post and only one post. Methinks he may have fled the coop.
 

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I agree 100% with this post...(except the math).

Given force drops with the square of the speed then f(v) ~ K(v^2) where K is some constant.

If we take f(v) = 60lbs @ v=170...wouldn't f(0.5v) = 0.25*f(v) = 15 lbs 🤪

Point is, wings are useless whether its 7lbs or 15lbs.

*disclaimer: COVID is making me a bigger PITA than usual
I was being lazy and didn't actually calculate K and got off by a factor of 2 somewhere... but yep you're right and you make me do maths (k is .00207 approximately) so congratulations.
 
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