I know I'm bumping a really old thread, but maybe someone will find this useful
You can find old Cannondale geometry charts in the annual catalogs in their Archive (
http://www.cannondale.com/bikes/archive/)
Specifically, for the CAADX:
2010:
http://media.cannondale.com/media/Ma...SA_English.pdf (page 62)
2011:
http://media.cannondale.com/media/Ma...sa_English.pdf (page 48)