pictures are as followed

seller says its a 3.0 series aluminum. Looks like it has all original Shimano 600 components and it has brake shifters.

from research,
*1990-1996 year (the logo used in front of frame).
*replaceable rear derailleur hanger.

I looked through the catalog for those years and i can't seem find the color/component combination.

**My best guess is a 1990/1991 Cannondale SR800**


your thoughts on buying a used 20+ yrs old all aluminum frame/fork.

im basically using this to exercise/fitness (probably gonna ride 2 times a week, for 25ish miles each time)

thanks