I own a 2012 Cannondale Supersix road racing bike, and I have recently taken up an interest in "converting" it to a TT/Triathlon bike by putting aero bars on it. I understand that because it's a racing bike and has a long top tube, it would be very difficult if not impossible to make this conversion work. So I was wondering about maybe selling this bike and upgrading to a different bike that would be a bit more flexible. So my question is, what kind of bike has the right frame design that would allow me to switch between regular road bike and TT/triathlon? I don't want to buy a TT bike but I want something that can sort of act like one if I want it to. Will a road/touring bike frame do the job? I was thinking maybe a Cervelo S5. Any thoughts/recommendations? Thanks.