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#1
September 26th 13, 01:12 PM
posted to rec.autos.tech
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why are swaybars significantly thicker at the front?
I measured my swaybars, and have 26 mm front and 16 mm rear.
Since torsional rigidity is proportional to fourth power of diameter, this means that the stiffness of the front bar is 7 times that of the rear. So only 1/8 of the anti-roll force is at the rear. Why is this? I have looked around, and in "sports" suspensions the rear swaybars tend to be bigger, but on the other hand some modern independent rear suspensions have even thinner swaybars that would be doing hardly anything. 
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#2
September 26th 13, 03:18 PM
posted to rec.autos.tech
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why are swaybars significantly thicker at the front?
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#3
September 26th 13, 04:25 PM
posted to rec.autos.tech
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why are swaybars significantly thicker at the front?
On Thursday, September 26, 2013 8:12:25 AM UTC-4, wrote:
> I measured my swaybars, and have 26 mm front and 16 mm rear. > > Since torsional rigidity is proportional to fourth power of diameter, > > this means that the stiffness of the front bar is 7 times that of the rear.
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