I just got this frame and fork. I bought a headset that is 30.2/ 26.4. Tange Passage.
I get that 30.2 is the stack height but I don't know if 26.4 is the correct size for the crown race.
I have installed a crown race before and it was tight but went on. I don't know if this crown race is going to go on there and I don't want to break it or damage the steerer. Maybe it needs a 27.0.
I don't have digital calipers. Is there a norm for the size?
It's a late 80's Univega frame made in Japan. Triple butted tubing probably made by Miyata.