Yeah, not sure. If I’m fueled properly, I don’t find riding at threshold for 9 mins ever really pushed me. I’m pretty carb heavy the day before and day of, and then I’m 120g/hr on the bike.
Maybe the prediction is also an artifact of how I usually rate/do workouts? Everything is either easy, moderate, or fail for me; if I’m struggling too much, I’ll turn down via the % and/or just get off the bike.
