Originally Posted by
gus6464
Why are you comparing a bike with Tiagra to another with Rival? That doesn't really make much sense. Also only the rear triangle on the Six is carbon, rest is alu cept for the fork. Geometries will be both aggressive with the Six and CAAD9.
He's not comparing the bike, components etc. If you notice he's concern about the different frames, probably goint to build it up.