Yours is the second version of the CAAD8 - there has been four - which moved towards a semi-compact design that was retained on the CAAD9.
You are right in that the smaller sizes of older CAAD frames sloped. But the slope was pretty difficult to spot without measurement [or shot in front of a garage door! See below]. Yours is pronounced and also features the teardrop profiling of the slightly newer frame. Don't worry though, it's still a vintage CAAD8 :)
Yours is the second version of the CAAD8 - there has been four - which moved towards a semi-compact design that was retained on the CAAD9.
You are right in that the smaller sizes of older CAAD frames sloped. But the slope was pretty difficult to spot without measurement [or shot in front of a garage door! See below]. Yours is pronounced and also features the teardrop profiling of the slightly newer frame. Don't worry though, it's still a vintage CAAD8 :)