I am wondering if the workout descriptions for some of the longer workouts are off? Chaochan for example claims it’s a long endurance ride but apart from a few sprints it’s 3h of recovery? Isn’t that what we used to call junk miles?
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In my opinion, any time you get in 3 hours on the bike, you’re forcing adaptations, and therefore these are good miles, not junk (unless you’re at an extremely high level and do 3 hours every day).
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Description looks accurate enough. It’s probably not the best use of 3 hours for most people. But it’s going to provide some benefit and 3 hours is certainly more than a recovery ride.
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Agreed. The only change I would make is it should say “3 hours”, not “over 2”
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I’ll make that update. 
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a recovery ride is 30 - 60 minutes, max.
2 hours at a low zone is still aerobic
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And “40-50% overestimated FTP” not “40-50% FTP” 
Sorry is the workout showing higher levels than that? Let me know if there’s an issue with the workout in particular.
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It’s a joke Ivy, apologies if the emoji didn’t communicate that! Said that because TR has long used Coggan classic zones and endurance is 56-75% FTP. And that zone wasn’t updated when the Coggan iLevel update was announced. So it’s rather odd to see a description stating Endurance (capital E) and 40-50% FTP.
Okay makes sense. For the sake of keeping the forum tidy and constructive contribution, let’s stay to the topic at-hand and post feature requests accordingly in their respective threads. Thanks!
It is on topic, from the original post:
Chaochan description claims to be Endurance, but its at 40-50% FTP. Which only makes sense if your FTP is overestimated.
Some people used that phrase, and I think it is BS. No such thing as “junk miles”.
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Right. This was the source of the misunderstanding for me. Just to clarify though (a quick search in the forum didn’t clear this up for me): did TR explicitly switch to iLevels or do you just mean WKOs switch?
TR has NOT switched to iLevels, however they are “flexing” zone definitions. And below threshold some of that flexing is confusing.
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Sorry to re-open this, but does anyone know of any studies or articles about long(ish) e.g. 3 hour Z1 (Coggan) rides like these?