On Thursday, November 10, 2005, at 11:13AM, <REClassicBikes@aol.com> wrote:
>I have an unusual chainring FS. Its a pre '67 campagnolo one, 52 teeth for
>3/32nd chains.
>
>The unusual bit is the large shoulder on the inside of the teeth circle.
>This makes it look like a track chainring although they are narrow 3/32nd chain
>teeth.
>
>Can any one shed any light on what this was for?
Modern track equipment is made in 3/32nds in addition to 1/8, is it possible that this was done that long ago as well?
Baird