Cinellis (at least the SC) are unusual in having a shim or tube brazed inside the seat tube, at the top. As I recall, it's about 5 cm = 2" long, and necks down the thing so it takes a 26.2 mm. seatpost instead of a larger 26.8 or 27.2. Maybe they make the shim thicker, and then ream to the exact 26.2; I don't know.
I guess that means you don't really need to support the whole length of the seat post, and it sure is easier to keep the top of the seat tube greased than 6 - 8". Come to think of it, I've never heard of a seized post in a Cinelli. Maybe not as many are left out in the rain?
I think we all acknowledge that the Cinelli is a fine bike, a rider's bike, but not quite so much a finished beauty as your average Masi. A great tool. But little things like this are very functional, and bring smiles whe you figure out that is was a quality mark.
For 30 years I wanted a Cinelli, and I'm glad to ride one now. Masi are great, but just somehow haven't yet lit my fire the same way.
harvey sachs mcLean va +++++++++++++++++++++++++++++++
Well the most obvious difference is the fork crown, which is not the full sloping type found on the Cinelli SC. BUT this Windsor crown does look very similar to one on a Cinelli Model B recently on eBay. So maybe one should compare Windsor Pro to Cinelli B. What post size did a Cinelli B use?
Big Spring, Texas, USA