Wheel volume

[Gezo]

I saw ROTOBOX motorcycle wheels (

http://www.rotobox.si).

They have hollow spokes... more volume. How does more air volume in wheel affect to riding?

 

[GregLocock]

Um, not much.


Cheers

Greg Locock


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[Gezo]

Yes I am new, sorry. I will learn.

 

[CapriRacer]

I assume the reason for the hollow spokes is to reduce weight without affecting the overall strength and stiffness of the wheel. I would think that a properly designed wheel with hollow spokes would have the same strength and same stiffness as one with solid spokes.

Many racecars use rifle drilled bolts for the same reason.

 

[patprimmer]

Like Greg says.

Also, a hollow spoke becomes a tube. It has the same structural advantages and disadvantages that tubular sections vs solid bars of same weight has in other applications. ie it increases rigidity per unit weight but also catastrophically fail's at lower deflection ue to the wall crumpling under compression.

Compared to other sections of similar rigidity per unit weight it probably also has better aero in a motorcycle wheel.

Regards
Pat
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[Gezo]

My question is only theoretical, how air chamber volume in wheel effects static and dynamic behavior of tyre.

 

[NormPeterson]

Assuming tubeless tires, I would expect either slightly softer tire stiffnesses at any given inflation pressure or a strong suggestion to run at slightly higher inflation than with "conventional" wheels.


Norm