Aerofoils on axle ends, effectively reduce unsprung weight?

[Ribenapigeon]

Would aero parts on the axle ends or swing arm or front fork lowers that created lift have a lightening effect on the unsprung mass?

[MarJay]

[temeluchus]

Can't tell if troll or imbecile.
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[CaNsA]

[stinkwheel]

Yes, in a similar way to how applying oil to both tyres will reduce friction between you and the road.
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[wristjob]

road vehicle with lift is usually a bad thing.
https://youtu.be/SFN_Gp1eHN0

[Howling TerrorOutOfOffice]

^^^I had a car that used to do that.
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[Islander]

[BTTD]

Fill tyres with helium for even greater effect.

[Ribenapigeon]

Aero parts for downforce create effectively a weight effect so why not use for lightening?

Before you laugh a couple years back I started a thread asking about aerofoils on bikes and got a similar reaction but they're being used this year on Moto GP bikes.

[Ste]

https://i.imgur.com/SDRwmD7.png

[BTTD]

Light wheels = lower inertia = moves up and down quicker = more contact with the road.
Aero foils = wheels lifting off the road.
See how that works out.

[Kickstart]

[Ribenapigeon]

[BTTD]

[Kickstart]

[MCN]

[grr666]

Did OP ever get that fence post out?
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[MarJay]

I could type out a long detailed reply to this, but I think I can distill it down to a short sentence:

... Fundamental misunderstanding about how motorcycle suspension works...
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Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

[weasley]

Perhaps the misnomer "unsprung weight" doesn't help. In reality it is unsprung mass that is important, because it affects the inertia/momentum of the moving parts. Adding any aero device will add mass to the system (and there is no aero effect in the world that can reduce mass, save for aerodynamic destruction).

As Katy points out, if you are pushing the unsprung portion of the vehicle into the road (with increased apparent 'weight') then it will be slower to react to bumps (although may have a tendency to stay grounded, which could aid traction).
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[Ste]

[Ariel Badger]

Some top-fuel bikes do employ a canard wing forward of the engine. Unless your 0-250mph is in the 5 second range I doubt you need one though.
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[MarJay]

The force of the weight holding the bike to the floor is not what makes the bike slower...

https://en.wikipedia.org/wiki/Inertia

Similarly, the force of the wheels touching the floor is not what makes unsprung weight bad.
____________________
British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F; Cheap project: CBR900RR FireBlade
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

[Ribenapigeon]

Ok I'll give up on this idea and move on to solidifying helium to make wheels and lower suspension parts

[MarJay]