SW FL riding where 100 miles = 100' OR LESS Back in 2016 with a few weeks to prepare for SIX GAP >>>
https://caamevents.com/event/six-gap-century-three-gap-fifty/
104 miles with 11,684' I began riding in the 53/12 for miles at a time holding 15mph to 19mph standing into the wind. Worked for me at age 66