Hi, I need advice on which size to choose for a Rosa 70 model bike (you can find the geometries in the attached photos)


These are my measurements

• 175.5cm height
• 82.4cm inseam
• 45eu foot size
• I pedal with a saddle height of 72.7/73 cm
• Some problems maintaining a very relaxed position.

Which size would you choose? a 50.5 or a 48?

De rosa indicates the sizes with the length of the seat tube... would size 48 correspond to an M 54 frame? and the size 50.5 to an L size 55 frame?

https://derosa.it/model/70/