Originally Posted by
Classtime
I need to read up on approximating LT2 (which I gather is closer to FTP than LT1). More recent endurance training research focuses on power so I guess I should try to gauge my effort over 100s of miles wrt to LT2 since I do not have a power meter. The last time I looked at this stuff was when "The Cyclists Training Bible" was pretty new.
LT2 and FTP are close to each other. Some would say they are essentially the same thing, just measured/established by different metrics (power/ duration vs. blood lactate concentration). They are both in the neighborhood of 86% to 90% of max heart rate.
Avg rando pace is going to be roughly at LT1 for shorter brevets. And below LT1 for the longer ones.
I don't think it's possible to be more specific as there is a lot of individual variability.