Originally Posted by
ColonelJLloyd
A circle is a circle, right? Once you determine the BCD of your crank you know what to look for.
Thanks--you are correct. I should have thought of that.
It looks like the obsolete Campy 116 (a 5-bolt) ring went down to 35 teeth. So I would guess that maybe the 3-pin steel ones came in at least a 36, maybe a tooth or two smaller.