Originally Posted by
bdcheung
I was riding 53x11 on the rollers last night, 105rpm at threshold. I know my FTP is gonna go up, so I want to increase the resistance on the rollers without resorting to things like towels or flat tires.
Open the flap on the KH all the way and you'll know why they call it "Killer"
A quarter open works pretty well for workouts in the 300-ish range...