Heart rate is a very individual thing. I'm just a year younger than you, my max heart rate is 195, based on testing done at sports medicine facility. It takes me about 20 minutes to really get into my groove. I prefer that to be on the flat.
How long was your ride? Were you eating properly? I know if I don't eat, I can't get my heart rate up.
As far as hills go, part of it is probably the power to weight ratio. I weigh probably 30 - 40 pounds more than some of the other women I'm riding with. They definitely climb faster than I do! But when we're riding on the flat or even a shorter hill, I can hang with them. We have roughly the same power, but their smaller mass gives them an advantage when climbing. I'm going to start tucking rocks into their bags.![]()
It seems to me you're making progress and that's what really matters. Do you realize in 4 months you've improved your speed average 40% on that hill that used to leave you exhausted? Keep riding and having fun.
V.