The 7.3 FX has "alpha black aluminum" which is double butted. The Absolute 2.0 has "altair 2 aluminum" which is described below as "custom butted" and according to a Fuji rep is double butted. My LBS salesman was tapping the Absolute 2.0's frame and said it was straight tube unlike a 7.3 Fx so I am confused. Maybe a forum member can verify?
The weights of bikes vary based on components / tires. However, I read somewhere on this forum that the Trek 7.3 Fx is ~ 27 lbs whereas the Fuji Absolute 2.0 is ~ 25 lbs. Putting aside specific consideration e.g. carbon fork in Fuji, both frames are identical in weight.Altair 2 and Altair 1 alloys both start with the finest grade aluminum, which is then drawn and shaped to Fuji’s specifications. Altair 2 differs slightly in that tubes made of this material are custom butted – a more intensive process where wall thickness, or gauge, is manipulated to save weight in some areas of the tube without sacrificing strength.
In 2008 the Absolute 2.0 had "altair 1" which is straight tube so the 7.3 FX frame was a clear winner. Now the 2009 Absolute 2.0 is supposedly double butted with its upgraded "altair 2" frame and has similar weight to the 7.3 fx frame. It is no longer clear which has the better frame. I did pick up a bike with "altair 1" Al and didn't notice much difference between that and double butted but I'm not a bike conoisseur.
My question to the members: do both bikes have frames that are similar in quality / construction?