Quill size?
It's for a RM Cirrus with a 1-1/8 headset so 1" quill... Correct me if I'm wrong, I've not received the fork at this time and it's my first build with a threaded fork...Got a 1 inch and a 1 1/8 that I think are the right size.
What size headset do you need and I’ll double check.