Originally Posted by LóFarkas
There are rim+tyre combos that are too difficult to mount by hand, I assure you. You just never came across one.
That said, I think most tyre levers snap because the user forces them the wrong way. You should go slowly, centimetre by centimetre, sliding the lever along the rim, and not pulling it out to reinsert it 3 inches further away.
Well, I'll keep that in mind, but I won't hold my breath
Sliding the lever along the rim has resulted in tearing the rubber around the bead in a few of my experiences. It's one of the reasons I switched to the hand method.