I know that the TdF has a 72 degee head tube because it's stamped on the lug. It looks like the seat tube is laid back another degree. It's way more relaxed than a modern race bike. It's also way more comfortable.

I think that the Super Corsa and the TdF had the same frame except for the dropouts. The TdF had Simplex and the Super corsa had Campy. My TdF has Simplex in the rear and Campy in the front and it is the original fork. I guess they ran short of Simplex fronts that day.

Campy NR hubs were standard on the Super Corsa and optional on the TdF.

I read that the Super Corsas were built with more care since they were the flagship model. My TdF has file marks that you can see under the paint, but I think they add to the French charm. I have a mental picture of Gitanes being assembled by chain smoking mimes.

The TdF is my all time favorite ride. You'd have to ride one to understand why.