He probably used a carbon frame in the mountains though - the TVT 92 had been around for a while, I remember Pedro Delgado using one - like a Vitus made with carbon tubes instead of aluminium. Not sure why they only used them in the mountains then, maybe they were a bit flexy?
The Ergolevers were of course merely 8-speed, I think the pros started using them around 1992 but they weren't on sale until 1993.
The narrow tubes, horizontal top tubes and shallow rims look much nicer than modern bikes. Meh.