Went out and shot some photos today. I think that the only differences that I can see is that my Aero has no side reflectors, and that mine has what Honda calls (HISS). This is Honda Ignition Security System, in which there is a computer chip in the black part of the key that somehow talks to the Ignition. If you don't have the origional key you cannot start the bike. Not really an alarm but sounds good to me. Now just trying to decide which pipes and jet kit to get???????Hmmmmm?