Jur,
Thanks for checking.
Forgive me for asking what might be obvious if I was more experienced. I thought the Birdy specs call for a 135 hub which I understand to be the standard for mountain hubs. The AC road hub would be 130??. I would rather us a road hub as they are generally lighter but I didn't think one would fit. Incidentally I was at a local bike event and found out that American Classic is located in my home town. They had a display at the bike local fest. Really nice looking hubs and wheels.
My intent is to have a new wheel built up with lower weight and change from an 8 to a 9 speed with lower weight components. I know it's more the rider (engine) then the rest but I need all the help I can get. I also plan to change the Maxis tires to Marathon Racers.
-Jim