sloar, It's likely that your '85 date frame was intended as an '86 model and possibly wasn't finished until even later (I have an '86 frame that wasn't completed 'till the '88 model year.). The early Cannondale catalogs aren't always exactly correct when trying to ID a particular bicycle, leading to many anomalies. There just seemed to be many running changes made during early production.

Yours is also painted in what looks like Mystic Chrome, a color used on the '96 Ford Mustang Cobra. There is also the strong possibility that some, or all of the gruppo has been replaced over the years.

Brad