First off, I appreciate the replies!
Second, I'm really out of the bike world the past three years. My CAAD9 was a CAAD9-5 with Shimano 105 and RS-10s. My CAAD10 is a CAAD10-4 with Rival and Fulcrum Racing 7 wheels. It's the Fulcrums I looked up and looked good through 240 pounds.
Sorry about that. I'll take the advice to move up to 25s. If I recall correctly some 23s run big and some 25s run small and they can sometimes be physically the exact same size.
Now if I can remember how Rival works and how clipless pedals work I'll be on my way. I just need to let out my heart rate monitor belt a few inches before I start.