On Nov 13, 2009, at 12:29 AM, brianbaylis@juno.com wrote:
> The main reason the file marks are so obvious on Cinelli BB shells is
> first, they are sand cast shells which are rough to begin with, so
> what doesn't get filed is still rough; and what does get filed is only
> done with bastard files, BIG ones! They apparently never heard of 2nd
> cut or smooth cut files in Italian bike factories.
In those glorious days of yore I bought bottom bracket shells from Cinelli and I can testify that they were sand cast and rough. I'm afraid a modern builder would run screaming from the room at the very sight of one. Phil Brown Examining one like Yorick's skull in Oakland, Calif.