I started out yesterday on my Giant propel to do 75 miles because that's what i needed to break 5,000 miles by the end of September.
At 5 miles, my rear shifter cable breaks and I have to turn around, but no worry, I have a 40+ year old Italian Gianni Motta that I swap in for the rest of the ride.
76.1 miles, 17 mph south wind and 89º.