Originally Posted by
Robert A
I'm 62, and 158 bpm is well within a sustainable range where I can converse with fellow cyclists and ride for an extended period. I was recently tested at 171 bpm in a hospital lab, and though I was significantly winded, I can only guess that my max was possibly 5-10 bpm more. But what is max anyway? A fuzzy line of exhaustion?
Max is maximum. Same meaning as max speed, max temp, max power, etc. Nothing fuzzy.