Originally Posted by
Bah Humbug
If that was a legit 20% grade, you're going to have trouble with that pretty much no matter what gears you have.
For sure, but having trouble is one thing. Literally not being able to pedal, even out of the saddle, is another. I know this cause I had some fellow riders on stock Cannondale Synapses with stock drivetrains, that were still able to pedal. Albeit very slowly