Originally Posted by
CyclesMakaron
This is a 1982 Professional, Columbus SL tubes.
The frame appears to have been painted out of EMC.
The C designation is a mistake (should be G), 1 is the frame size (51 c-c).
The frame measures 53cm c-c which is why I didn't understand the coding....
What does the C mean and why should it be a G? Either way, I can't wait to ride it!