Well, this website says the Rominger world hour records were set using a
COLNAGO Columbus Oval CX tubed bike in 1994:
http://www.bikecult.com/
> Re: Tony Rominger setting the world hour record on a Oval CX bike (as
> mentioned below). The ebay lister is mistaken. Rominger's record was set
in
> 1994, and in an interview in http://www.cyclingnews.com with Ernesto Colnago,
> Colnago says: "When Rominger broke the world hour record, I wanted to
create
> a bike that could be used to break this record. So we developed the design
> and the moulds to make this monocoque bike that would be very aerodynamic
> and in the end, it became a capolavoro (masterpiece).". Pictured is a
carbon
> bike.
> Angel Garcia
> Long Valley, NJ