jimmy,
I have used the BB shell in question. I intend to use more in the future. I believe they are Haden blanks that are cut to the Nervex pattern, It just so happens that I recently happened upon an original Nervex BB shell and found that the angles are not compatible with current geometry. It could of course be blacksmithed into submission but I opted for the already conforming Haden shell as the center of my replica of a 1960ish Masi Special track bike for myself. I say go with the better quality and comforming Haden.
Brian Baylis La Mesa, CA
Can't decide wheather they're less filling or wheather they taste great;
but either way they're better!
>
> Has anybody out there used the nervex pro reproduction
> bb shell available from Classic Bikes in building up a
> frame?I am in the process of having a retro frame
> builtup using nervex pro lugs but without nervex bb
> shell and would like input on reproduction from some
> builders-owners of such before using it on my first
> custom frame.
> Thanks jimmy k.