>>1399973>is a 30% slope hard to do?Yes. You need to keep pedaling constantly and consistently. Ease off for even a moment and your cadence rapidly drops, considering you'd already be in your easiest gear, you've got no fall back. In a low gear with that kind of resistance its very difficult to recover lost speed, I'm not sure standing up would even be an option at that grade.
The steepest climbs I regularly encounter are under 10% and even those are tough. There is one with a very short 20% section right at the start and that usually messes me up for rest of the climb if I'm not careful.
You might as well try it.
