Originally Posted by
gyozadude
Second basic concept to impart: The maximum (aerobically sustainable) power humans can deliver by spinning pedals occurs in a narrow range of 60 - 90 RPM.
I can't agree with that. All of the information I've seen in writing has shown that a range of 85 - 105 is more efficient and sustainable. I'm 68 and have no problem maintaining 85 to 100 for at least 100 miles. My wife rides at 95 - 110 rpm for at least 2 hours.