My brother lived in Tulsa around 1974-1976. I remember him speaking of a 24 hour cycling event. I think he said he did a bit over 300 miles. I will have to get back with him. I also seem to remember him doing it on an orange Schwinn Super Sport.
Edit; confirmed he rode a Super Sport a bit over 300 miles in a 24 hour endurance ride on a closed course.
Last edited by sd5782; 03-08-24 at 12:43 PM.