Average HR during endurance rides (4-6 hrs): 124-128
I'm pretty ignorant, but wow!
That's normal ... isn't it? That's what my hr is on endurance events. It usually starts at about 135ish as I begin cycling, and then drops into that range once I settle into my pace.
I've also noticed that my hr will be a little bit higher (128-130) when I'm riding in traffic, and then drops to about 120-124 when I'm riding in the country.
I don't think you'd want it much higher than that, or you wouldn't be able to ride very far.