Moto Guzzi à coup sûr, Falcone? I agree Moto Guzzi - don't know the model though. Looks to be 1950s. I agree with Moto Guzzi Falcone. Picture shows Fausto Coppi winning stage 10 from Lausanne to Alp d'Huez, 1952.
Moto Guzzi Falcone, they were built from 1950 to 1967.
On dirait bien les têtes de fourche montées en SAV sur Yamaha 1100 XS. A vérifier si autres vues...
It's a K series BMW, look at the radiator shroud.
BMW GS for sure, maybe a R 100 GS.
1994 BMW R 1100 GS