Back to the perspective of vintage racing bikes as "tools for racing," not high-end gourmet showpieces.
On Fri, Nov 13, 2009 at 10:53 AM, Phil Brown <philcycles@sbcglobal.net>wrote:
>
> 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.
>
>
> _______________________________________________
>
--
Ken Freeman
Ann Arbor, MI USA