Serottas were very nice bikes. We use to sell them at the shop I worked at in the late 80s early 90s. We had the fit cycle that Serotta also had available for his dealers. There were a couple of models but I don't recall all of them (Colorado, TG, and a Titanium) There were also several different ways to order your bike. 1. A production bike that was no different than any pre-built high end bike that you may purchase from a showroom floor. 2. A customer would pay for our fit cycle service and try to find a Serotta that "fit" right for them. Basically we would set the fit cycle to Serotta's production geometry. (which if i remember correctly varied per model and several different setting for one sized bike. i.e. 56cm std and 56 cm long) Then the customer would select their paint job, decal set, etc. This was the most common form we sold because it was quiet a bit less expensive than the 3rd option and the customer could still get a completely custom paint job. 3. A completely custom frame adjusted via the fit cycle.
It was a pretty exciting experience as a mechanic to receive these bikes in and assemble them for a happy customer. I think anyone who was a mechanic for a few years will know that you really don't get to work on "dream" bikes all that often. The variety of components was pretty fun too. A lot of Dura Ace and I even got to work closely with Mavic Zapp. I remember working on a Titanium Serotta with a cool half natural and half British Green paint job. It sold for $5500+ and that was in 1991.