Originally Posted by
Citoyen du Monde
The "diamond" chain stays were a standard part of Ugo De Rosa's arsenal. He used them for many years. You will not see them on other brands, but they are indeed common on De Rosa built bikes. These stays and seat stays are good proof that it is indeed De Rosa built.
I've seen something a very strange Molteni bike.
One of the bikes of Joseph Bruyere. Another one probably.
If you look at the main triangle, It's a Kessels.
The last models of Kessels with slots on the BB rather than holes. Old paint + second type of Kessels sticker.
However, If you look at the rear triangle... it looks like the De Rosa.
I let you speculate.
A period repair ?
A colaboration between Kessels & De Rosa ?