Originally Posted by
wolfchild
I smell BS here....Nobody can sustain Zone 5 ride for more than a few minutes, not even eite level athletes.
Up to 40 minutes in zone 5 in my parallel universe....
https://www.heartzones.com/why-to-us...e-field-tests/
Last edited by koala logs; 07-24-22 at 08:47 AM.