I have been looking at the CAAD9 4 for a while now, but my local LBS is having trouble locating any in stock. I went by today and he had an 08 Cannondale SIX13 that has never been sold. It has full Dura-Ace components and looks great. The salesman let me bring it home for the weekend, so I will get to play around with that for a few days.

He also has a CAAD9 4 frame in the back that he says we can build up however I would like it. I haven't ridden the CAAD yet, the only built up bikes they have left are 60cm, which is way to big. My question to you is, old SIX13 with Dura Ace, or the 2010 CAAD9 more than likely with SRAM or 105. He said he could do the same on price for both which is about $1700.

I haven't read a whole lot about the SIX13, I know it is half carbon and half alluminum. My only concern is why hasn't anyone bought the thing.