thanks to all for advice and welcome
this next bit caught my eye...
Originally Posted by p8rider
I was very surprised at what my heart rate gets up to, but like another rider mentioned a key factor is how quickly you recover.
Can you tell me if there's a 'rule of thumb' about measuring
recovery rates? I think my HRM will do this but I have no
idea what it would mean to return to a given rate in a given
time. How do you know if your recovery time is good or bad?