Originally Posted by
Snuts
I was on a 2400km trek across the Canadian prairies.
There also comes a point where you are spinning, and traveling at a speed which is hard to keep stable.
As also pointed out by others. There is no shame in walking a bike up the crest of a hill.
-Snuts-
Ha ha, walking a bike that weighs 120lb, sure that's not hard at all.

Oh, and up a hill too. Even better.
If you must then you must, I suppose. But that 28/32 should be plenty to get any hill...