I owned a bike shop from 80-87 and we occasionally sold the low end Centurions. They were always very very nicely finished frames compared to the competition. The company that distributed them was called something like Western States Cycle. It was the same company that sold the BMX bikes called Diamond Back. The reason I mention this is that in the mid/late 80s, the company stopped calling their road bikes Centurions and changed their name to Diamond Back and the Centurion brand ceased to exist from then on. I may have gotten some of the details wrong but thats the general story of why you don't see Centurion any more.

Dan