Some years ago, I think about 2000-2002, I bought a CAAD5 frame at the Gary V. Hobbs site. I built it up using Centaur parts I already had, and later turned it into a single speed. I turned it back into a 10 speed recently. I can't believe how well it rides. Feels light and responsive. I love the ride. Just wanted to praise Cannondale for excellence.