
Taken my max heartrate to be 211 for a few years now, but today when putting a lot of effort in very early on in a ride I noticed it was holding steady around 225. As you can see for about a minute or so it was over 220, and at the time I didn't see anything that would be causing it to give an error or anything. Was absolutely fine for the rest of the ride, and the rides before that.
I know about the 220-age thing, so I was surprised to see it over 220.

