I don't quite follow. Are you talking about on my Zone 2 rides or my Zone3/4 rides? I usually just glance at my watch and/or look at Strava afterwards etc. Check out the details below. Let me know if you think I should look out for anything in particular?
Here is my Zone 2 ride from today.
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Here is my Zone 3/4 ride from Saturday. I'm not very structured with my harder rides, I just push and then stop when I'm tired lol.
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I think you mean to look at the average like below?
For Saturday's ride it seems the average (154) is in Zone 3.
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Today the average seems the be in Zone 2, which makes sense.
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