Wurm, I currently ride a CAAD3 Silk Road 500, and absolutely love it. The older aluminum tubing can be very harsh, but my particular bike (which I cannot seem to find on the net anywhere....hm) has fat tubing and a huge headset which helps absorb shock for the rigid aluminum. I also have a carbon fork, stem, and seatpost to help with the shock as well. This bike is the smoothest I've ridden - aside from Felts. But what 21 year old can afford a Felt, really?