Originally Posted by
queerpunk
A mix of smaller gears and full gearing - the top-end cadence isn't the problem, it's getting there after spending time applying power through the lower ranges. So improve the power application through that range (full gearing), AND improve your ability to climb out of it (undergearing).
As with a lot of sprint work, this should be done when fresh, with full rest between, and absolutely stop an effort once you start bogging down. Max power only. Do these wkos 2x/week and in a month, PBs will start pouring from the sky*.
*results not guaranteed.
That is EXACTLY the issue, yes. And I do the efforts fresh, usually doing 4-6 with 15-20min rests between. And as soon as I see peak power decline ~10% I shut it down and go home.