Originally Posted by
volosong
One of my bikes is a 2010 model and its tube shapes and geometry are very aerodynamic. Manufactured long before the current marketing fad... I didn't purchase it because of its aero characteristics, (who even knew about that stuff back then), but because it was a very good price point for the component group it had. (I've since moved the groupset to another bike, which is my favorite and most comfortable ride.)
I wouldn't call it a fad, as aero has been a key word in road cycling since the late '80s, and the application of aero has been on an inexorable march forward ever since.
Everything, from wheels to handlebars to cable routing to seatposts, cranks, and pedals has undergone aero scrutiny...and it started waaaayyy before 2010!