I completed the 4k TT a few minutes ago with a new HR Max of 188bpm recorded. You can check the lap breakdown below:
Km Avg Pace Avg HR Max HR
1 04:12/km 174 182
2 04:12/km 182 185
3 04:13/km 184 186
4 04:11/km 186 188
I also sent you a PM with a link to the Garmin Connect activity.
Name is Daniel, will be 33 years old in a couple of months, 72.5kg, 171cm.