For most of my 37 mile, moderate to slowish speed (15.x average) ride today, my HR stayed in the 145-165 range more or less, but I spiked it twice over 175. One was on an Interstate highway overpass and the other after stopping at a 4-way stop. It came back down to my average range in a few minutes, but not immediately. Still, absolutely no shadow of chest pain, tightness, tingling, numbness, whatever... today or ever in the past.
My BP is pretty moderate for my age and (lack of?
) fitness: "Truly resting" numbers range between 115/70 to 125/85, with pulse between 65-75. My doc says my numbers look good and "keep on doing whatever you're doing". I guess I just have a higher-than-standard-formula HR when exercising. Maybe that will come down over time.