Originally Posted by
Trakhak
And on the topic of vibration-damping properties of frames built with various metals, both steel and titanium are denser than aluminum and thus transmit vibration more readily.
In any event, the vibration people worry about presumably has to pass through the tires and then through the rim and spokes and fork blades. In other words, I, too, am dubious regarding the idea that vibration damping happens much at all, as well as the idea that differences in vibration between diamond frames made of various materials are perceptible.
Well most people who have ridden carbon vs aluminium bars can easily feel the difference in vibration damping, so I can imagine the frame would have some effect too. I thought the ping pong ball test was quite interesting on the Bianchi page I linked. There was clearly a big difference in vibration transmission between the 2 frames. It would have been interesting to see how an aluminium frame would have compared.