I'm coming up to Forty any day. I've seen my hr last week at 219 which is slightly higher than normal on a ride, but it wasn't maximal. Resting (proper resting) is low 30s.
Normally av 175-185 and can sustain around 190 for up to an hour. (Training at 3000' amsl). I'm fitter than ever.
I've sent my hr back though this week so relying on my iPhone/hr strap.
I'm not overly fussed about it other than if my av is lower than 170 I've let myself down! I'm not the quickest rider or fittest out there so I can only conclude these figures are all relative to me and I can't compare them to others.
I guess genetics determines how quickly you get round the race course to a large degree!! A bit like mentioned above.