Originally Posted by
rogerdev
who does them? how often? how hard? and has anyone ever done these a lot harder than the prescribed effort?
The bread & butter of yester years greats, Merckx, Hinault etc. I just wonder how hard them guys trained, what massive intervals they did, over the fancy Chris Carmichael/Joe Friel training and recovery system programs they both advocate.
They certainly weren't worrying about wattages.