Originally Posted by KerryIrons

Your characterization of frame materials is flawed from the get-go. Back in the day, "everybody knew" that aluminum frames were flexy because frames like Alan and Vitus were aluminum and were flexy. Then Klein and Cannondale came out with "huge" (for the time) frame tubes and all of a sudden "everybody knew" that Al frames were uncomfortably stiff. Early CF frames were noodles too. Until Litespeed brought shaped tubing to the party, Ti frames were "known" to be flexy. Each frame material can be tailored to a given ride characteristic with the only difference being the final frame weight.