I have a Campy SR rear derailleur which is missing one of the nuts that hold on the pulleys.
Specifically, it's called the "sprocket bolt nut" and is part #7161015 on Page 17 of Campy Catalog #18.
I'm presently using a nut that fits the bolt but is bigger then the OEM nut & looks "weird".
Can anyone help?
Jeff Holt
West Deptford, NJ