Today while while out on my ride I hit 102% HR max. Granted, I have a few pounds of winter fat to loose (5 lbs. actually) and I'm not in the best of shape even given my almost daily rides on the trainer. I was climbing a hill in a gear that I usually use in the summer and didn’t realize my HR was so high until I started to get winded at the top. Anyway it got me thinking: is it theoretically possible to be 102% HR MAX, or if you go over what you thought was your HR Max, then you should readjust your HR Max to the new higher number because you were wrong.