Move on the saddle to make seated climbing easier.
If you sit in one spot on a long grade, your muscles will fatigue faster than if you shift locations.
Here’s why this works: When you slide to the rear of the seat, you put greater emphasis on the gluteus muscles in your butt while taking some stress off the quadriceps in your thighs.
When you start feeling the strain, slide forward to do the opposite — relieve your glutes while calling your quads into play.
By shifting like this you’ll also combat upper-body rigor mortis. The overall result is more comfort, efficiency, and an easier time on extended grades.