Originally Posted by
chasm54
It'll be a spike in the readings. Have a look on Garmin connect and you'll be able to see how long your HR was supposedly 196. My guess is that it will have been transient. It can be caused by a cycling jersey flapping against the chest strap - if you were riding into a highish wind, that could be it.
+1. I've had this problem with the old Garmin strap with the hard case. I now use the soft strap -- it gets dropouts but I know these are errors.