Originally Posted by
billridesbikes
I hate rolling hills like that, and they hate me.
It's power that matters, but if you're going anaerobic too many times you'll blow up. If your FTP is 360W, a 2 hour race could be done at an average of 340W (-5% for every double of time.) ?
95% for two hours, 90% for four hours? That's insane.
I seriously question either of those. The endurance aspect, the fueling aspect, the specificity... not that some extreme masochist couldn't specifically train go accomplish that, but there's no way on Earth that's even remotely typical.
I once did 3 hours at ~89% and it broke me for a week plus, and I spent about two months building up to that.