Originally Posted by
HillMut
How did you determine your max heart rate? given your information you rode 2 hours at 86% of your max HR... I won't say its impossible.. but I know when I get up to 85%-90% of my max I'm not lasting long, usually that is during a sprint. And you rode a few miles at ~98% of your max - you animal!
. I think you need to re-examine that.
I believe the OP was stating the max HR
for the ride. MHR is not very useful in training, anyway, as mentioned.
Also, most trained cyclists will have a threshold HR slightly above 90% of their MHR.